Train Derails Near Baltimore Ballpark
A CSX train carrying hazardous materials including hydrochloric acid derailed and caught fire yesterday in a tunnel in downtown Baltimore, postponing the second game of a doubleheader between the Texas Rangers and the Orioles at Camden Yards. The stadium was evacuated.

Firefighters waited for hours Wednesday at one end of a tunnel in downtown Baltimore because the chemical fire was too hot to fight. "We tried to get firefighters inside, but the entry was very limited," said fire department spokesman Hector Torres.

New York Times, July 24 2001:
Tunnel in Baltimore is Cleared of Train

Five days after a freight train derailed and caught fire in a Baltimore tunnel, crews pulled out the last smoldering boxcar. Firefighters had battled the blaze since Wednesday afternoon, when it began on a CSX train 60 feet underground in the 1.7-mile-long tunnel. The fire, billowing thick black smoke, snarled traffic and closed major roads and forced the cancellation of three Orioles games. The derailment of the train, which was carrying hazardous chemicals, wood and paper, is under investigation. Attention has now turned to testing the structural soundess of the tunnel. Because of saftety concerns, part of Howard Street, a main thoroughfare above the tunnel, remained closed.  

(Minneapolis Star Tribune, July 19, 2001; New York Times, July 24 2001)