A suspicious substance shut down the downtown Berkeley BART station on Thursday for almost an hour.
The substance was discovered at 11:50 a.m. and caused 20-minute delays on the Richmond to Fremont and the Richmond to Daly City lines, according to chief BART spokesman Linton Johnson.
"There was something spilled, we tested it, and it wasn't dangerous," he said.
The unidentified substance was discovered near the station agent's booth, BART spokesman Jim Allison said. The station was closed until 12:45 p.m. while BART investigated whether the material was dangerous.
During the closure, trains were turned around at the North Berkeley and Ashby stations and an AC Transit bus shuttled passengers between the stops. Service on the two affected lines was restored shortly after the station reopened and did not affect the evening commute.