Riyadh-A Yemeni expatriate who killed Police Corporal Muthhil al-Selouly in Saudi Arabia on Wednesday by running him over with his car and then stabbing him had pledged allegiance to ISIS, Saudi security agencies said.

Omar Bahaysami, a 20-year-old Yemeni, ran over al-Selouly, as he emerged from a mosque after dawn prayers and then stabbed him to death, the state news agency SPA quoted an interior ministry spokesman as saying.

The attack occurred in the Asir region of the southwestern province of Bisha.

“The offender had the approval and belonged to ISIS,” Spokesman Major General Mansour al-Turki said. “He had monitored the victim … and been in contact with elements of the organization abroad preparing the crime.”

Six other Yemenis were arrested on suspicion of links to the case, al-Turki said.

“The investigation is still ongoing in this terrorist crime and work is underway to track and control all those who might be linked to the case,” he stated.

“Any updates available will be announced later,” he added.