5 injured after cable car in San Francisco stops suddenly

Authorities say five people were injured when a San Francisco cable car came to a sudden stop in the city's Nob Hill neighborhood.

The mishap occurred Wednesday morning. San Francisco Fire spokeswoman Mindy Talmadge says one of the injuries -- an elderly man who fell and hit his head -- was considered life-threatening.

Four others were taken to the hospital with non-life-threatening injuries.

Additional details were not immediately available.