BOSTON (WHDH) - A heavy police presence near the Boston College Green Line stop prompted the Massachusetts Bay Transportation Authority to temporarily suspend service on Tuesday.

Caution tape was placed around the train as investigators work to gather evidence around 4 p.m. An hour later, the station reopened.

MBTA officials said a “medical emergency” was responsible for the delay in service.

This is a developing news story; stay with 7NEWS on-air and online for the latest details.

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