San Francisco Mayor Ed Lee dead at 65

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SAN FRANCISCO, CA – NOVEMBER 08: San Francisco mayor Ed Lee looks on as he campaigns in Chinatown on November 8, 2011 in San Francisco, California. (Photo by Justin Sullivan/Getty Images)

San Francisco Mayor Edwin M. Lee died early Tuesday morning at Zuckerberg San Francisco General Hospital, according to a statement from his office.

Lee, 65, had been mayor since 2011.

Board of Supervisors President London Breed became Acting Mayor of San Francisco, effective immediately, the mayor’s office said in the statement. Breed will appear at a press availability Tuesday morning at City Hall.

Details have not been made available regarding the circumstances of Lee’s death.

“Our thoughts and prayers are with his wife Anita, his two daughters, Brianna and Tania, and his family,” the mayor’s office said in a statement.

An earlier version of Lee’s official schedule of public events for Tuesday showed that he planned to conduct meetings at City Hall in San Francisco.

Lee had been a civil servant in San Francisco since the 1980s, when he was named investigator for the city’s first Whistle Blower’s Ordinance.