PA security officers arrested two prominent activists, Omar Assaf and Bashar al-Takrouri, and confiscated the mobile phone of another activist, Jamileh Abed.
The PA official hinted that they would implement previous resolutions of the PLO to halt security coordination with Israel.
A senior Palestinian official welcomed the move, provided it applied to Jewish settlements only.
Pro-Palestinian activism has re-packaged genocidal terminology and tried to hide it behind claims of “mistranslation.”
The meeting was postponed because Palestinian Authority President Mahmoud Abbas wants to maintain channels of communication with the Israeli government.
The official condemnation from the PLO comes after a FIFA showcase match between a team of Arab soccer legends and a side managed by Israeli coach Avram Grant.
The Palestinian Authority president's decision was apparently designed to silence critics ahead of a possible resumption of peace talks between Israel and the PA, Palestinian analysts said.
The Jerusalem District Court on Sunday ruled that the Palestine Liberation Organization must pay nearly NIS one million to the estates of two Israeli victims of a 1985 ship hijacking.
But President Joe Biden and his officials have shown little appetite for reviving Israeli-Palestinian talks.
Shadi al-Sufi, 38, was found guilty of killing Jaber al-Qeeq, a former activist with the PLO’s Popular Front for the Liberation of Palestine (PFLP).