Israel's leader on Sunday dismissed a call from a key government partner to share the holy city of Jerusalem with the Palestinians, a reminder of the obstacles facing already troubled peacemaking efforts.

Conflicting claims to east Jerusalem lie at the heart of the Israeli-Palestinian conflict. The dispute over the area, home to sensitive Jewish, Muslim and Christian holy sites, has derailed past peace talks and spilled into violence. Palestinians claim the sector as the capital of their future state.

Israeli Prime Minister Benjamin Netanyahu's reaffirmation of his intention to hold on to east Jerusalem drew criticism from the Palestinians and was likely to increase friction with the Americans. The White House Mideast envoy is scheduled to arrive this week in another attempt to push peace efforts forward.

Netanyahu's defense minister, Ehud Barak of the centrist Labor Party, called for sharing Jerusalem with the Palestinians. But a government official said Barak's idea does not reflect the government's view.