The MBTA is reporting severe delays on the Green Line after a train derailed at the Copley station, officials said.

Buses are replacing service between Copley and the Kenmore stations, a MassDOT spokesman told the Herald.

No injuries have been reported from the derailment, which remains under investigation, spokesman Jason Johnson said.

B Line trolleys from Boston College are terminating at Blandford Street station, where buses are connecting riders to Kenmore station.

The MBTA is sending service alerts, as well as Tweets and other public announcements of the interruptions.