Three young children have been taken to hospital following the attack.
The suspect, following his arrest by police, was taken to the Old City police station for questioning.
A Jew was beaten to death in the US. A woman was stabbed in Lyon. The moment when a grenade will be thrown at a synagogue or when someone will shoot students on their way to synagogue is not far off.
The background of the attack has not been confirmed.
Jashua Bowles, repeatedly stabbed the unnamed woman, who was working at British intelligence agency GCHQ, in March near its base in Cheltenham in western England.
The wounded police officer was transferred to Shaare Zedek Medical Center.
A teacher was killed in a knife attack in Arras, and the investigation was handed to the anti-terrorism prosecutor's office.