Woman wounds three at YouTube headquarters in California, then kills herself

Police officers and crime scene tape are seen at Youtube headquarters following an active shooter situation in San Bruno, California, U.S., April 3, 2018. REUTERS/Elijah Nouvelage

SAN BRUNO, Calif. (Reuters) - A woman who had voiced complaints online about YouTube opened fire with a handgun at the tech company's headquarters near San Francisco on Tuesday, wounding three people before shooting herself dead, authorities and media said.

It was the latest in a string of mass shootings in the United States in recent years. Most recently, the massacre of 17 people at a Florida high school has led to calls for tighter curbs on gun ownership.