Rosa and his family were among the group of people forced out of their homes. "There was a total of about 30 people displaced and about 5 pets," said Allentown Fire Marshal Jon Steed. An RV parked in the alleyway was melted beyond recognition. The heat from flames, fire officials say, may have caused propane tanks stored there to explode.

The Allentown Fire Marshal said about 30 people and 5 pets have been affected. The Red Cross said as of Tuesday afternoon, they are helping 19 of those folks, but