Other police who responded to the incident neutralized the attacker.
A man in his was 50s declared dead, while a 9 year old and another man in his 40s were badly injured.
"The road was slippery and the area was dark. We saw a vehicle overturned and four injured nearby.
Police repeatedly called on the the public to refrain from traveling to the area.
One of the casualties, 18, was taken to the trauma unit at Hadassah Ein Kerem in serious condition.