By Tim FangBay Area Rapid Transit (BART) service on the Yellow Line in eastern Contra Costa County was restored after an earlier problem Tuesday morning, officials said. Around 6:20 p.m., the agency announced service was stopped between the Antioch and Pittsburg/Bay Point station. Officials said there was an equipment problem on the track. During the closure, riders were directed to use Tri Delta Transit bus service between the stations. At 9:20 a.m., BART said normal train operations between the stations was restored and the system was recovering.