Red Line train derails in South Boston. Here's what we know

BOSTON An investigation is underway after a Red Line train derailed near Broadway Station early Saturday morning, the second incident on the MBTA subway system in less than 24 hours, WCVB reported.

The MBTA said the first car of a Red Line train derailed just before 6 a.m. while using a rail crossover near Broadway Station in South Boston as part of a planned Red Line diversion.

The diversion was in place as part of the Dorchester Avenue Bridge project, suspending service between Broadway Station and Ashmont and North Quincy stations, with shuttle buses serving riders affected by the diversion.

Because of the derailment, shuttle bus service was extended from Broadway to Park Street through noon while MBTA crews re-railed the train car and inspected the track.

The derailed train was removed from the area and regular service resumed between Park Street and Broadway at about noon Saturday.

This incident happened less than 24 hours after service along the Blue Line was suspended near the Orient Heights station after the failure of the roof-mounted pantograph on a northbound train caused the train to lose power just after 5 p.m.

Passengers were evacuated from the train with help from MBTA personnel and Boston firefighters and had to walk about 500 feet down the tracks to the train platform at the Orient Heights station.

Repairs took more than six hours to complete before service was resumed along that section of the Blue Line.

This article originally appeared on The Patriot Ledger: Investigation underway after Red Line train derails in South Boston