Muni bus fatally hits bicyclist in downtown San Francisco

Offciers at the scene where a cyclist was struck and killed by a Muni bus on Market Street in San Francisco, California on Sunday, October 11, 2015. Offciers at the scene where a cyclist was struck and killed by a Muni bus on Market Street in San Francisco, California on Sunday, October 11, 2015. Photo: Gabrielle Lurie, Special To The Chronicle Photo: Gabrielle Lurie, Special To The Chronicle Image 1 of / 25 Caption Close Muni bus fatally hits bicyclist in downtown San Francisco 1 / 25 Back to Gallery

One bicyclist was killed and another seriously injured in two separate accidents that occurred within a half-hour in downtown San Francisco on Sunday afternoon.

A bicyclist on a silver mountain bike was caught between two Muni buses and was then fatally struck and wedged beneath a westbound articulated Muni bus on Market Street west of Battery Street, police said. That accident occurred around 3:30 p.m.

Traffic on Market Street was backed up for blocks while officers and coroner’s deputies attempted to move the bus and remove the body.

Exactly how the accident occurred was under investigation, and the cyclist, a 48-year-old man, was not identified.

Shortly after 4 p.m., a cyclist was involved in an accident with a horse trailer being pulled by a truck at Embarcadero and Chestnut Street, police said. The unidentified cyclist, a 46-year-old woman, was taken to San Francisco General Hospital. Details of that accident and the extent of her injuries were not immediately known.