JERUSALEM (JTA) — An Israeli soldier was critically injured when a heavy object was thrown at him and hit his head during an operation in the West Bank.

The soldier was involved in an operation early Thursday morning to arrest wanted Palestinian terrorists in the Al Amri refugee camp near Ramallah, the IDF said in a statement.

During the operation, a heavy object, reported to be a large rock or cinder block, was thrown at the troops, hitting the soldier in the head.

He was taken to Hadassah Ein Kerem hospital in Jerusalem in critical condition. The soldier’s family was notified before the incident was made public several hours later.

Late on Wednesday night, a Palestinian opened fire on Border Police at a checkpoint near Jerusalem. The gunman, identified as in his 20s from a village near Bethlehem, was captured and arrested after a chase. He was carrying a handgun and a knife.

Early this morning, an IDF soldier was severely injured when a heavy object was thrown at him & struck his head during operational activity in Judea & Samaria. He was evacuated to the hospital for medical treatment. The incident is being reviewed and his family has been notified

— IDF (@IDFSpokesperson) May 24, 2018