US Secretary of State John Kerry urged both the Palestinians and Israelis to halt "all incitement" and violence, after three weeks of violence sparked fears of a new Palestinian intifada or uprising.

"It is absolutely critical to end all incitement, to end all violence and to find a road forward to build the possibility, which is not there today, for a larger process," he told journalists, with Israeli Prime Minister Benjamin Netanyahu next to him as the two leaders began talks in Berlin.