Explosion in Prague Injures 40

At least forty people were injured when an explosion tore through an office building in Prague, on Monday.

Three people are still missing, and search and rescue dogs were being used to find them in the rubble.

Neighboring buildings took damage, especially the library of Charles University, one of the Czech Republic's oldest universities.

Five major streets through Old Town were littered with debris from the blast.

Officials believe that it may have been a gas explosion, but are investigating to be sure.