Update 2:15 p.m. Monday: BART says its crews were successful in replacing a switch on its eBART line, between Pittsburg-Bay Point and Antioch. The agency says service has returned to normal.
Original post: BART and its eastern Contra Costa County patrons are suffering through a major service disruption on the brand-new eBART line.
The transit agency says the problem involves a track switch near the Pittsburg Center Station.
Pittsburg Center is midway between Antioch, eBART's eastern terminus, and Pittsburg-Bay Point, where passengers transfer to BART's main line through Contra Costa County to Oakland and on to San Francisco. The agency inaugurated the $520 million line on May 25.
BART said the switching problem was reported at 5 a.m.