Israeli rescue services say there has been an explosion on a bus across from the military headquarters in Tel Aviv.

Emergency services rush to the scene of an explosion on a bus in central Tel Aviv, Israel. (Ziv Oren/Getty Images)

The agency says at least 10 people were hurt in today's blast. The explosion comes amid an ongoing Israeli operation against Gaza's Hamas rulers aimed at stopping Palestinian rocket fire.

Zaki Heller from the Israeli rescue services says the wounded have varying degrees of injuries. It was unclear if anyone was killed.

An Israeli driver who witnessed the explosion told Army Radio the bus was "completely charred inside."

Clinton In West Bank

An official says the U.S. secretary of state has returned to Jerusalem for another round of meetings with Israeli leaders as she tries to wring an elusive truce deal over the Israel-Hamas fighting.

Israel's Prime Minister Benjamin Netanyahu (R) and U.S. Secretary of State Hillary Clinton leave after delivering joint statements (Baz Ratner-Pool/Getty Images)

The official spoke on condition of anonymity because he was not authorized to release details of the meeting.

He says U.S. Secretary of State Hillary Rodham Clinton went back to Jerusalem after holding talks in the West Bank with Palestinian President Mahmoud Abbas on Wednesday.

She'll be meeting with Israeli Prime Minister Benjamin Netanyahu, Defense Minister Ehud Barak and Foreign Minister Avigdor Lieberman in her attempts to help piece together a deal that would satisfy the two foes after eight days of fighting.

Clinton is due to travel later to Cairo, which is mediating in the crisis.

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