Six people were killed on Friday in the bloodiest spate of Israeli-Palestinian violence for years, prompted by new security Israeli measures at Jerusalem’s holiest site.

Three Israelis were stabbed to death in a Jewish settlement in the Israeli-occupied West Bank, hours after three Palestinians were killed in violence prompted by Israel’s installation of metal detectors at entry points to the Noble Sanctuary-Temple Mount compound in Jerusalem’s walled Old City.

Palestinian President Mahmoud Abbas ordered the suspension of all official contact with Israel until it removed the metal detectors. He gave no details, but current contacts are largely limited to security cooperation.

“I declare the suspension of all contacts with the Israeli side on all levels until it cancels its measures at al Aqsa mosque and preserves the status quo,” Abbas said in a brief televised speech.