Regular service on the MBTA’s Red Line resumed Wednesday morning between two stations in Dorchester after a water problem near a station caused the tracks to flood.

A pipe bend near the Ashmont station in Dorchester “went off” Tuesday evening, a Boston Water & Sewer Commission spokesman told reporters at the scene. The water problem caused flooding along surrounding streets and in the MBTA station, where it created a dangerous situation as it rose to the height of the power rail, a transit agency spokesman said.

As of about 7:20 a.m. Wednesday morning, regular service resumed, according to the MBTA. Shuttle buses that ran between Ashmont and JFK/UMass from Tuesday night into Wednesday morning have been replaced.

The disruption occurred while another section of the subway line was closed for repairs. Shuttle buses have been replacing train service between JFK/UMass and Braintree since September 6. Regular service on that section of the line is expected to resume on September 29.

The MBTA first alerted commuters to the water problem around 6:45 p.m. on Tuesday. By 8 p.m., the transit agency attributed the delays to “water from an external pipe near the station that was leaking into the northbound track area at Ashmont.” Minutes later, shuttle buses began replacing service.