This file photograph shows a police vehicle.

The California Highway Patrol temporarily closed Interstate 580 and stopped BART service in the area on Saturday when officers responded to a report of a possible “incendiary device” located inside of a vehicle parked in the center divider on I-580 eastbound in Castro Valley, authorities said.

The vehicle — located just east of Eden Canyon Road — was “deemed safe” after officials with the Alameda County Sheriff’s Office Explosive Ordinance Disposal unit searched and “x-rayed” the vehicle, CHP officials said.

Dublin Area CHP officials initially responded to the call at 1:45 p.m. Authorities closed all lanes and stopped BART service in the area “for safety purposes,” CHP officials said.

BART service between Castro Valley and Dublin/Pleasanton was temporarily halted “due to a suspicious vehicle on the freeway,” BART officials said at the time of the closure.

“CHP asked us to halt train service while they investigate a suspicious vehicle on the freeway,” BART officials said on Twitter shortly before 3 p.m.

Traffic on I-580 was being diverted to Eden Canyon Road shortly before 3 p.m., officials with California Highway Patrol’s Dublin Area office said.

Shortly before 4:30 p.m., CHP officials said all lanes were reopened and thanked motorists for their patience.

“The California Highway Patrol appreciates the motoring public’s patience throughout the incident as well as the assistance provided by the Alameda County Sheriff’s Office,” CHP officials said on Saturday evening.

At 4:16 p.m., BART officials announced normal service had been restored between Castro Valley and West Dublin stations.

Lauren Hernández is a San Francisco Chronicle staff writer. Email: lauren.hernandez@sfchronicle.com Twitter: @ByLHernandez

Lauren Hernández joined The San Francisco Chronicle in 2018. She covers breaking news, crime and general news. Previously, she was a breaking news reporter for the USA TODAY Network's Statesman Journal in Salem, Oregon. She studied journalism at San Jose State University, and was born and raised in Los Angeles. Hernández has bylines in the Silicon Valley Business Journal and The Desert Sun. Her reporting has received awards in California and Oregon. She is a member of the National Association of Hispanic Journalists and the CCNMA Latino Journalists of California.