BART police involved in SF Civic Center station investigation; major systemwide delays

Civic Center BART station in San Francisco. (Courtesy Citizen)

BART police are investigating some kind of incident at San Francisco Civic Center station Wednesday evening, officials say. The transit system is experiencing major systemwide delays as a result. 

BART first tweeted about what they called "police activity" just after 6 p.m. By 7 p.m., Civic Center station reopened and normal service resumed. 

KTVU reached out to BART officials who said the investigation was active and that they are reviewing surveillance footage, but did not offer further details. The delays appeared to be in all directions from San Francisco BART stations. 

Muni had provided bus service between 16th Street, Civic Center, and Powell Stations.

This is a developing news story. We will update as we learn new information.