Search warrants were served in cities including Oakland, San Leandro, Hayward, Vallejo, Antioch and Richmond as part of the investigation.
DEA agents executed warrants at homes in Contra Costa and Humboldt counties as well as Fairfield, Suisun City and Modesto, authorities say.
Police are still searching for 2 men who committed an armed robbery at Round 1 bowling alley and arcade in Concord earlier this week.
Concord police arrested 2 people on suspicion of DUI and cited 31 drivers for various violations during a DUI saturation patrol on Friday.
Stolen car pulled from water at aquatic park; cops break up large street fight; and other East Bay police, fire and court news.
Concord and Pleasant Hill officers along with Contra Costa sheriff's deputies responded to the fights Saturday night, police say.
The newly promoted deputy fire chief is now second-in-command of the Contra Costa County Fire Protection District.
Carport fire spreads to several vehicles; burglar puts on suit stolen from City Hall; and other East Bay police, fire and court news.
When arrested, the burglar was well-dressed in a suit taken during his sojourn of City Hall, police said of the unusual incident.
Debbie Shandrew's body was found Aug. 22, 2018 by a dumpster behind a shopping center on Clayton Road, near the Concord BART station.
A fire in one car reportedly spread to others and the carport itself, a fire official said.
The fire was reported at 9:39 a.m. Friday and extended into a structure, according to Con Fire.
Twelve people lived at the home that burned, but the residents home at the time were able to evacuate safely, a Con Fire official said.
The teenage driver died when her car went through a guardrail, then hit a cement wall.
Concord police say the suspect, who did not get away with any cash, was not found in an extensive search of the area.
The 52-year-old was arrested after a resident called Petaluma police to report a man was suspiciously checking the door handles of vehicles.
Police are still investigating the incident Saturday night at The Jungle.
Person hit, killed by BART train; package thieves wear fluorescent clothes; mid-morning DUI; and other East Bay police, fire and court news.
Police said the Concord man may be connected with other thefts in the East Bay.
Little League auction baskets stolen; 20 evacuated in building fire; colleague poisoning; other East Bay police, fire and court news.
The fatal incident remains under investigation, according to Concord police.
Concord police confirmed they received a report of the basket thefts on March 16.
Driver accused of going 127 mph; racist graffiti investigated; new fire chief sworn in; and other East Bay police, fire and court news.
"DUI saturation patrols will take place in areas with high frequencies of DUI collisions and/or arrests," police said.
The fire was reported at 2:40 a.m. Wednesday, according to Con Fire.
Cleanup was said to be ongoing Tuesday.
PHOTOS: Chief Lewis Broschard was sworn in Friday as the 12th fire chief of ConFire, one of the state's largest fire districts.
Suspicious freeway death; dump truck driver cited for 6-ton spillage; laptops taken at cafe; and other East Bay police, fire and court news.
Firefighters arrived to find a woman had escaped the blaze through a window but a man was still trapped inside the home.
The Concord crackdown on DUI drivers was held Friday night into early Saturday.
The death of a woman Saturday on Highway 4 near Port Chicago Highway in a solo-vehicle crash is being investigated as suspicious, CHP says.
A CHP officer reportedly witnessed the truck losing its load all over the freeway.
A car slammed into a restaurant, a soccer coach was arrested, a coke dealer was sentenced and other East Bay police, fire and court news.
The first 911 caller reported 20-foot tall flames, East Contra Costa Fire officials said.
The CHP video about what to do when in a car crash on the freeway also features Rocket Scientist. Bloopers included.
The Contra Costa County Fire Protection district this week presented Samantha Barnhouse the Carnegie Hero award.
The crackdown was announced in a news release and is planned St. Patrick's Day weekend.
The blaze was reported at about 4:37 a.m. Tuesday. Three residents and two cats made it safely out of the home, a ConFire official said.
The federal case was the result of a drug trafficking investigation by the DEA and the Concord Police Department.
An Amtrak train hit a car; an alleged "prolific" identity thief was caught, and other East Bay police, fire and court news.