The Energizer Bunnies still going strong.

KARACHI, Pakistan (AP) — Hundreds of Pakistanis protesting an anti-Islam video produced in the United States clashed with police as they tried to march toward the US Consulate in the southern city of Karachi.

Police officer Mohammad Ranjha says police fired tear gas and water cannons at the protesters Sunday after they broke through a barricade. Police and private security guards outside the consulate also fired shots in the air to disperse the crowd.

Ali Ahmar, a spokesman for the Shiite Muslim group that organized the rally, said one protester was killed. But police officer Iqbal Mahmood said they had no information about a death.

Separately on Sunday, US Secretary of Defense Leon Panetta told reporters that he expected such violence on the Muslim world to abate.