WOMAN CHARGED WITH ASSAULTING SINGER AT BLUES FEST: HAYWARD  (AP) — A woman has been charged with felony counts of assault and elder abuse in an attack on 73-year-old R&B singer Lester Chambers at a Northern California blues festival where he had just dedicated a song to Trayvon Martin.

The San Francisco Chronicle reported Wednesday that Alameda County prosecutors charged 43-year-old Dinalynn Andrews-Potter of Barstow in the July 13 attack at the Hayward festival.

Authorities say Chambers was performing the song "People Get Ready" for Florida teen Martin just after George Zimmerman was acquitted of second-degree murder when Andrews-Potter shouted something and shoved the singer into an amplifier. Chambers ended up on the ground with bruises and swelling.

Chambers and his family had asked that Andrews-Potter be charged with a hate crime, but authorities say her motives were unclear.

Andrews-Potter told police she had a stress disorder and a repetitive part of the song caused her to snap. It wasn't clear if she had an attorney.

HAYWARD CITY EMPLOYEES STRIKE OVER CONTRACT TALKS: HAYWARD  (AP) — Public employees in the Bay Area city of Hayward are on strike.

The San Francisco Chronicle says dozens of city workers ranging from administrative staffers to library assistants hit the bricks Tuesday for a three-day walkout.

One striker was slightly injured when a van tried to get through a picket line at City Hall.

The strike was called by a union over contract talks that have stalled over health care and retirement issues. The union represents about a third of the city's 820 employees.

Critical workers such as 911 dispatchers remain on the job.

City officials say they'll try to keep the library and other services going with temporary hires.

BICYCLIST STRUCK, KILLED BY TRUCK IN SF: SAN FRANCISCO (AP) — Police say a 30-year-old woman has died after being hit by a truck while riding her bicycle in San Francisco.

Sgt. Dennis Toomer says the incident occurred when the truck was trying to make a right turn in the city's South of Market neighborhood Wednesday morning.

The woman was taken to San Francisco General Hospital where she was pronounced dead from her injuries.

Her name has not been released.

Police say the truck driver has not been cited. His name has not been released.

Police had closed off streets to investigate the crash for about two hours before reopening around 9 a.m.

GROCERY STORE WORKER'S ARM CRUSHED BY MEAT GRINDER: SAN ANSELMO  (AP) — State authorities are investigating after a Northern California grocery store worker had his arm crushed in a meat grinder.

The San Francisco Chronicle says a 28-year-old Rohnert Park man suffered a compound fracture of his right forearm in the accident, which took place Monday at Andronico's Market in San Anselmo.

Peter Melton of the state Division of Occupational Safety and Health says the man had surgery on Tuesday. There's no word on his condition.

A Cal-OSHA inspector went to the store Tuesday.