According to a police recounting of the incident, the officer and a fellow cop had approached the youth, who was said to be behaving in a suspicious manner. They asked to see his identification.
After handing over his ID card, the 19-year-old pulled out a knife and stabbed one of the officers in the neck.
The terrorist was named by Israeli media as Muhammad Ali, 19, from Shuafat in East Jerusalem.
A NEARBY GROUP OF OFFICERS FROM ANTI-TERROR UNIT YASAM SAW THE ATTACK UNFOLD AND OPENED FIRE, KILLING THE ATTACKER.
Watch: (WARNING: GRAPHIC)