The knife-wielding terrorist was thwarted, the police added. Magen David Adom (MDA) said at least one person was critically wounded.
MDA medics and paramedics treated the victim and evacuated him to the Hadassah Mount Scopus Medical Center. The man was in moderate condition.
Three young children have been taken to hospital following the attack.
Lubin was murdered in a stabbing attack carried out by a resident of east Jerusalem near Herod's Gate of the Old City in Jerusalem.
A swastika was painted on the door by her attacker.
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 incident was caught on video, showing Sgt. E. swiftly kicking the assailant in the chest, sending her to the ground. The officer followed up with another to incapacitate the attacker.
The terrorist was apprehended by police at the scene. A second person suffered from minor stab wounds in the attack.