(BCN) — BART officials report that police activity at the Coliseum Station in Oakland is causing a major delay early Tuesday on the Berryessa Line in the Berryessa, Richmond and Daly City directions.

The incident was first reported as a major medical emergency, according to a 12:37 a.m. news release from BART officials, who six minutes later described the ongoing incident as police activity in an announcement that the Coliseum Station was closed briefly. It reopened before 1 a.m.

This is a developing story and more details will be shared when they become available.

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