When gunfire rang out in her San Francisco Bay Area neighborhood, a 30-year-old mother shouted at her two children to run to safety before she was hit by a stray bullet and killed.

The San Francisco Chronicle reports (http://bit.ly/1NIP2YE ) that Chyemil Pierce died Monday afternoon outside her home in Oakland. Her 7-year-old son and 9-year-old daughter, who ran around the house and hid as bullets flew, weren't hurt.

Investigators say a gunbattle apparently broke out as Pierce, a human resources employee at Kaiser Permanente, was heading home after picking up her kids from school.

Witnesses say up to 50 shots were fired.

The newspaper reports that two people possibly tied to the fight, a teenage boy and a man, were wounded but expected to survive. No arrests have been made.

___

Information from: San Francisco Chronicle, http://www.sfgate.com