Amtrak train derails inside tunnel near DC's Union Station; rail service disrupted

WASHINGTON - Authorities say an Amtrak train derailed Tuesday morning inside a tunnel outside Union Station.

The derailment was reported around 9 a.m. inside the tunnel near the entrance of the station. 

Fire officials say two cars derailed, but were upright on the tracks. The train was occupied, but the derailment was minor in nature, they said.

Firefighters were able to board the cars. They say one Amtrak worker was transported for a minor medical condition. No other injuries were reported.

All passengers were moved to unaffected rail cars and were transported to L’Enfant Plaza Station. 

Southbound train service in and out of Union Station is experiencing disruptions at this time. Commuters can expect delays into the afternoon.

FOX 5 spoke with passengers who were stuck on the train. Many said it was very hot, but otherwise said the situation was handled well.

This is a developing story. Stay with us for updates.