San Francisco fire and police responded to a report of a pedestrian being struck by a Muni light-rail vehicle in the area of 19th Avenue and Junipero Serra Boulevard at about 3:05 p.m., fire spokeswoman Mindy Talmadge said.
A woman in her 20s was hit by the light-rail vehicle and was being resuscitated at the scene before being transported to San Francisco General Hospital, Talmadge said.
Muni officials were not immediately available for comment.