Updated

Israeli police are investigating the fatal shooting of a 22-year-old Arab Israeli after video footage emerged showing the man retreating when shot.

Police said officers opened fire in an Arab village in northern Israel Saturday against a knife-wielding man attempting to stab policemen. Unknown-sourced footage later appeared to show a different story. The grainy security camera material showed a man repeatedly banging on the window of a police vehicle. When officers emerged to confront him, he began to backpedal and was then shot. Police evacuated him to hospital where he died.

Police spokeswoman Luba Samri said police was investigating the incident to determine whether proper protocol was followed.

Dozens of Arabs youths later took to the street, burning tires and hurling rocks in protest.