Board of Supervisors President London Breed, centre, gestures during a news conference as San Francisco Mayor Ed Lee, left, and police chief William Scott listen at City Hall in San Francisco. Picture: Eric Risberg/AP

San Francisco — San Francisco Board of Supervisors President London Breed has become the city's acting mayor following the sudden death of Mayor Ed Lee.

The San Francisco native on Tuesday also became the city's first African-American woman mayor.

Breed is a lifelong San Francisco resident who grew up in public housing in the same district she now represents.

She had been considered likely to run for mayor after Lee's second — and last — term expired in 2019.

San Francisco Board of Supervisors President and acting mayor London Breed, right, walks from the mayor's office to a meeting at City Hall
San Francisco Board of Supervisors President and acting mayor London Breed, right, walks from the mayor's office to a meeting at City Hall in San Francisco. Picture: Jeff Chiu/AP

The remaining 10 board supervisors had elected her president.

They can choose her to serve as temporary mayor or appoint another person.

She will remain mayor until the June 2018 election if the board can't decide.

Associated Press