U.S. President Barak Obama spoke with Prime Minister Benjamin Netanyahu on Saturday after hundreds of Egyptian demonstrators broke into the Israeli Embassy in Cairo earlier in the day.

The U.S. president's office issued a statement in which Obama expressed great concern over the attack and for the Israelis stationed there.

The statement said that Obama "reviewed the steps that the United States is taking at all levels to help resolve the situation without further violence, and calls on the Government of Egypt to honor its international obligations to safeguard the security of the Israeli Embassy."

Obama and Netanyahu agreed to stay in close touch until the situation is resolved.
Calls to end the historic 1979 peace agreement between Israel and Egypt, a pact that has never been widely supported by Egypt’s constituency, have been on the rise since the fall of Hosni Mubarak in February. Tensions rose last month after Israeli forces responding to a cross-border militant attack mistakenly killed five Egyptian police officers.