At least 14 people were killed and over 50 others injured in a double attack Wednesday in the Kurdish-held Qamishli town in north-eastern Syria near the border with Turkey, a monitoring group and activists said.
A car bomb exploded targeting the Justice Department and Kurdish internal security force in the town located in al-Hasaka province, the head of Britain-based Syrian Observatory for Human Rights, Rami Abdel Rahman, told dpa.
Syrian state TV in an initial report said 22 people, mostly civilians, were killed in the blast, without giving details.
Activists in the area said a truck laden with explosives blew up at the entrance of the street housing the headquarters of the Asayish forces, killing and wounding mainly civilians, as well as inflicting heavy material damage.
No information was immediately available on the second explosion.
Islamic State claimed responsibility for one of the two bombings, saying that a suicide bomber driving a booby-trapped truck targeted the Kurdish People's Protection Unit (YPG) headquarters in Qamishli.
The claim was made via its mouthpiece Aamaq Agency channel on the Telegram messaging app.
YPG controls swathes of north-eastern Syria including most of al-Hasaka province.
The extremist group cited a security source as saying 100 were killed in the blast and dozens others were wounded.
On May 31, Kurdish fighters backed by US-led airstrikes launched a widescale offensive on the Minbij pocket, the extremists' last territory on the Turkish border.
The operation is aimed at cutting the extremist group's final link with the outside world and isolating its de facto Syrian capital, al-Raqqa, which lies south-east of Minbij.