Firefighters said some homes were threatened by the fire, but evacuations were lifted after crews were able to contain it by 6 a.m.
An Acura sedan collided with a Chevrolet Suburban carrying nine people, one of whom died, the California Highway Patrol said.
The Walnut Fire broke out in the same vicinity as Thursday's Marsh Fire.
The wildfire is partially contained, according to Cal Fire.
Concord Vice Mayor Laura Hoffmeister was arrested May 25 by Clayton Police on suspicion of driving under the influence.
Fire investigators were not able to assess the blaze for a possible cause as firefighters continued to battle hotspots.
The driver of a Hyundai Tucson died at the scene of the crash on state Highway 4, the California Highway Patrol said.
Two drivers were arrested Friday evening during DUI enforcement patrol by he Concord Police Department.
One person suffered major injured and a horse was killed in a collision in Knightsen Friday night.
The charges stem from offenses alleged to have taken place March 19 in Pleasant Hill.
The blaze on Willow Pass Court near state Highway 4 burned 30 acres.
Guadalupe Jose Robles is being held in lieu of $2.1 million bail in connection with the death of Shafi Kevin Qasimi of Walnut Creek.
Pastor Maria Gardner-Langston told KPIX the criminals stole TVs, the sound system, mics, speakers, two drum sets and pictures off the wall.
Three small fires were set along Highway 4 near the intersection of San Marco Boulevard in Pittsburg, a Con Fire official said.
Fentanyl, heroin & $139K seized, DNA on shirt leads to robbery suspect, "kids" edibles and other police & fire news this week from East Bay.
The fires stretched from Concord to Hillcrest Park in Antioch not far from Highway 4.
Over $700,000 in stolen merchandise was recovered from an East Bay home and a storage facility, the California Highway Patrol said.
The driver in the crash on state Highway 4 was arrested on suspicion of DUI and hospitalized with major injuries, the CHP said.
The shooting occurred late Saturday night.
Woman & boyfriend accused in husband's death, pool party gunfire, teen killed on Hwy. 13 & other police & fire news this week from East Bay.
Ismael Alvarez, 34, and Francesca Lopez, 44, are accused of killing Felipe Lopez in January in his Concord home.
A blaze that burned behind several homes and forced the evacuation of a school was the second fire in as many days in Pittsburg.
Police say the goal of the Community Electronic Eye program is to help solve crimes.
The Leland Fire burned some 7 acres south of state Highway 4, according to the Contra Costa County Fire Protection District.
A man was killed early Sunday morning when his motorcycle collided with a vehicle on Ygnacio Valley.
Two Concord residents and a Hercules resident were arrested following an investigation by the ATF, DEA, USPS, Concord PD and Antioch PD.
A juvenile was arrested in connection with the shooting death of a man Saturday morning at the corner of Meadow Lane and Johnson Drive.
Investigators saw footage of the suspect lighting a piece of cardboard on fire, then throwing it into a dumpster, Con Fire said.
The 50-year-old Concord resident was previously charged with possession of child pornography.
It was the Concord Police Department's first drone deployment.
Witnesses helped identify the suspects in both incidents.
One person was in custody in connection with the fires, authorities said.
It took over three hours and a 50-person rescue effort to free the man who was stuck in a storm water drainage pipe in Antioch.
The mayor of a small Bay Area town said he was pulled over by the California Highway Patrol on Saturday morning.
The crash occurred at about 3:40 a.m. Sunday and caused the freeway to be shut down for four hours.
A Contra Costa County jury convicted Mitchell Bacom, 67, of first-degree murder in the cold case death of 14-year-old Suzanne Bombardier.
Witnesses reported seeing a tractor remove a standalone ATM from in front of the bank, police said.
A GoFundMe campaign to help send the boy's body to his family in Central America has garnered more than $22,000 in donations.
A woman is seeking legal action after she was brutally attacked by a police dog after admittedly shoplifting from an Ulta.
Gunshots were reported shortly before 11 p.m. Sunday at Dave & Buster's on Diamond Boulevard, police said.