The Palestinian government has called on its “fighters” to launch a “day of rage” against Israel on Friday that will include armed attacks in Jerusalem, a move that has sparked fears that widespread riots could wreak havoc on the holy city.

Israeli authorities shut down access to Jerusalem’s Al Aqsa mosque late Wednesday following the shooting of a Jewish citizen by Palestinian terrorists.

Israel’s call to block access to the Temple Mount area of Jerusalem’s Old City—the first such closure since 1967—led the Palestinian government to call for armed resistance and accuse Israel of declaring war.

“Fatah calls to its fighters and to the masses of the Palestinian people to aid the Al-Aqsa Mosque and occupied Jerusalem,” the Palestinians’ main political party said in a statement published Thursday and translated by Palestinian Media Watch (PMW).