A Palestinian killed an Israeli-US girl with a knife after infiltrating a Jewish settlement on the southern West Bank, the Israeli military and witnesses said.

Hallel Ariel, aged 13, was declared dead after repeated resuscitation efforts failed, a spokeswoman for Jerusalem's She'arei Zedek hospital, Shoham Rubio, said.

The US State Department confirmed the girl was also a US citizen.

An Israeli man, aged around 30, who was a member of a security team that patrols the settlement, was also seriously injured, with both stab and gunshot wounds sustained during an attempt to overpower the attacker, first aid officials said.

The attacker was a 19-year-old from a nearby West Bank village, according to the Palestinian Health Ministry.

The Israeli military closed off the village, Bani Naim, by placing sand roadblocks at access roads, and surrounded the house of the attacker's family, the official Palestinian Wafa news agency reported.

Israeli Prime Minister Benjamin Netanyahu's office said he ordered the army to cordon off the village, to revoke work permits for members of the stabber's clan and to begin "procedures" to demolish the assailant's family home.

"My daughter was just sleeping. A happy, calm girl. A terrorist came and murdered her in her bed," the victim's mother, Rina Ariel, told reporters outside the hospital.

The settlement's security officer, Eyal Gelman, said security personnel in a lookout post saw the Palestinian climb over the settlement's security fence and immediately sent a team, which heard noise in the house nearest to the fence and burst inside.

"Everything happened very, very quickly. We got there really in a few minutes," he said.

The Palestinian stabbed one of the security team members, but was shot dead by another. The girl's father was on the patrol team, which found the girl stabbed in her bed.

"We enter the house. The father is with us. And inside we see her sleeping with more than eight stabbing wounds that I counted," Gelman told Israel Radio.

"The horrifying murder of a young girl in her bed underscores the bloodlust and inhumanity of the incitement-driven terrorists that we are facing," said Netanyahu.

"We will continue to take strong and determined action against terrorism everywhere and at all times," he said in a statement.

"I expect the Palestinian leadership to clearly and unequivocally condemn this vicious murder and take immediate action to stop the incitement."

UN Middle East envoy Nickolay Mladenov condemned "the gruesome murder" of the girl, noting that it was just one example of the violence that continues to put the prospects for peace in jeopardy.

Israel and the Palestinian areas have suffered a wave of violence since October, including dozens of knife attacks launched by Palestinians protesting the ongoing occupation and perceived Israeli violations - denied by Israel - at a disputed Jerusalem holy site. 

The violence had appeared to have calmed down for several weeks, until two Palestinians killed four Israelis in a central Tel Aviv shooting attack in early June.

A second bout of violence occurred later Thursday when a Palestinian man pulled a knife in the coastal city of Netanya, stabbing a man and a woman before he was shot to death.

More than 220 Palestinians - most of them knife attackers and other assailants - and 34 Israelis have been killed amid the violence.

Latest news

Syrian opposition rules out future role for President al-Assad

The Syrian opposition said Friday it would not accept any role for President Bashar al-Assad in the future of the war-torn country, reacting to a recent US shift saying that removing al-Assad is no longer a priority for Washington.

Russian Army integrates breakaway forces of Georgian province

Parts of the small fighting forces of the Georgian breakaway province of South Ossetia have been placed under Russian military control, Russian Defence Minister Sergei Shoigu said on Friday.

Czech Republic's Pilsner Urquell beer is now Japanese

Japanese brewing company Asahi completed its takeover of the Czech brewery Pilsner Urquell on Friday, Asahi said in a statement.

Judge approves 25-million-dollar settlement of Trump University case

A US district judge on Friday approved a 25-million-dollar settlement of lawsuits and state fraud allegations against Trump University, the US president's now-defunct business venture.

Former Thai premier Thaksin to junta on reconciliation: 'Cut me out'

Former Thai prime minister Thaksin Shinawatra on Friday announced that he is not interested in the junta-led reconciliation process, three days after the junta handed him a half-a-billion-dollar tax bill for his past business deal.

Dalic: We welcome possible deal between Agrokor and banks

The government welcomes the possibility of an agreement being concluded between the Agrokor food company and creditor banks, and the bill on vitally important companies is not a fallback plan but the result of the government's care for the overall economic and financial stability of Croatia, Deputy Prime Minister and Minister of Economy Martina Dalic told a press conference in Zagreb on Friday.

Croatia, China sign action plan for cooperation in agriculture

The Croatian and Chinese ministries of agriculture on Friday signed an action plan for cooperation in the field of agriculture for the period 2017-2018, the Croatian ministry said in a statement.

ZSE indices up, Agrokor shares in focus of investor interest

The Zagreb Stock Exchange (ZSE) indices on Friday rose by more than 1.8%, with stocks of the Agrokor food and retail concern being in the focus of investor interest again.

Berlin police defend handling of Berlin market attacker

Berlin police defended themselves on Friday against accusations that they stopped surveillance on Berlin Christmas market attacker despite knowing in June 2016 he was dangerous.

Croatia, creditors tailor emergency measures to save tottering giant

Croatia's tottering retail and food giant Agrokor reached an agreement with its creditors, putting its debts standby and allowing it to continue working during emergency restructuring, the Croatian branch of Austria's Erste Bank said Friday.

Agrokor's creditors say standstill agreement to go into force today

A standstill agreement regarding the Agrokor concern's existing financial obligations to banks will take effect on Friday, additional capital will be injected into the concern in the coming days and the concern will be actively restructured, which includes a change of its management, it was said on Friday after a meeting between Agrokor's suppliers and creditor banks.

Palestinians, UN slam Israel's new settlement plan

Palestinians, Israeli activists and the UN lambasted the government of Israeli Prime Minister Benjamin Netanyahu on Friday, a day after it gave the go-ahead for the first new West Bank settlement in a quarter of a century.

South Sudan rebels release three abducted foreign oil workers

South Sudanese rebels have released three foreign engineers they abducted in early March in the oil-rich Upper Nile region, Foreign Affairs Ministry official Mawein Makol Arik said on Friday.

Turkish opposition: Imprisoned party chief has gone on hunger strike

The head of Turkey's pro-Kurdish opposition party has launched a hunger strike from prison.

European leagues threaten Champions League schedule clashes

The European Professional Football Leagues (EPFL) on Friday threatened schedule clashes on Champions League matchdays in an ongoing dispute with the governing body UEFA.

Danish court revokes citizenship of IS volunteer

A Danish appellate court on Friday stripped a man of his Danish citizenship for volunteering to fight for the extremist Islamic State in Syria.

Banks and Agrokor agree on key elements of standstill agreement

Member banks of the coordinating committee of financial creditors and representatives of the Agrokor food company have in principle agreed on key elements of a standstill agreement, which is expected to be signed later today, announcing changes in the company's management team, Erste Bank said in a statement on Friday afternoon.

Syrian man on trial in Sweden; mosque attack labelled terrorism

A Syrian man went on trial Friday in the southern Swedish city of Malmo, charged with terrorism and arson after an attack last year on a building used as an assembly hall by Shiite Muslims.