First Look on the Ground After Deadly China Explosion

— -- The deadly explosion in Tianjin, China, on Wednesday killed at least 50 people and injured hundreds. ABC News' Bob Woodruff went close to the scene of the incident today, walking through the wreckage left behind.

The explosion was so powerful that cars melted and homes crumbled. About a mile away Woodruff found vehicles dented, with their windows blown out. He also explored a nearby migrant camp that was completely destroyed. In another area, Woodruff entered an office building, where glass and debris littered the floor.

The first blast happened at 11:30 p.m., followed by a second explosion just 30 seconds later, according to a statement from the Tianjin Fire Department.