Saudi Arabia's King Salman on Tuesday vowed to strike back at those leading the country's youth astray, a day after three suicide attacks in the Kingdom, one of them outside the Prophet's Mosque in Medina.
"The kingdom is fully determined to strike with an iron fist all those who aim at the minds or ideas of our dear young people," Salman said in an address to the nation for the Islamic feast of Eid al-Fitr, published by the official Saudi Press Agency.
The Medina attack, which killed four policemen near Islam's second-holiest site, 24 hours before the end of the fasting month of Ramadan, has drawn condemnation from Islamic figures worldwide.
No group has claimed responsibility for the attack or for two other suicide bombings the same day, outside a Shiite mosque in the eastern city of Qatif and near the US consulate in Jeddah in the west of the Kingdom.
The Jeddah bombing killed only the attacker, and reports suggest there were no innocent victims in the Qatif attack either.
Many observers, however, suspect the Islamic State extremist organization of being behind the bombings.
The group, which controls areas of eastern Syria and northern Iraq, has frequently denounced the Saudi monarchy and has claimed previous attacks on Shiite mosques in Qatif and elsewhere in the kingdom.
The group claimed responsibility for Sunday's car bomb attack on a shopping street in the Iraqi capital Baghdad in which at least 213 people were killed.