Right now I'm watching coverage of an explosion at Praxair Distribution in south St. Louis (Jefferson and Chouteau).
Early coverage from the St. Louis Post-Dispatch:
The blaze began around 3 p.m. at Praxair, a gas and tank company at 2210 Chouteau. As of 4 p.m. a policeman at the scene said no injuries had been reported. Explosions had slowed to perhaps one per minute from the frenetic pace of earlier in the afternoon. More than a dozen emergency vehicles were at the scene.
As I write this, Highway 40 is being shut down between the Poplar Street Bridge and Kingshighway - though tonight's Cards game is not expected to be interrupted.
Additional coverage: KSDK News Channel 5 (including photo gallery), KMOV News Channel 4
