By Michael Pearson, Jethro Mullen and Anna Coren, CNN

Sydney (CNN) -- Australian police stormed the cafe where a self-styled Muslim cleric had been holding hostages early Tuesday, ending a crisis that had shut down central Sydney for hours.

"Sydney siege is over." New South Wales police announced on Twitter. "More details to follow."

Police have not commented on casualties in the raid, but Australian media reported that some people may have died and others may have been injured. Police have not disclosed the fate of the gunman, identified by an official with direct knowledge of the situation as Man Haron Monis. It was unknown if any police were injured.


Hundreds of police officers, including snipers, surrounded the Lindt Chocolate Cafe in Sydney's central business district shortly after the gunman took over the building at 10 a.m. Monday (6 p.m. ET on Sunday).


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