LOS ANGELES (AP) _ An explosion and fire destroyed a fruit warehouse downtown Tuesday, killing one person and injuring five others.

Deputy Fire Chief Bob Neamy said the cause of the blast was under investigation. The business used a flammable ripening agent on bananas and other fruit, but there were also reports of a propane leak, he said.

The blast happened just before 11 a.m., and firefighters battled the flames for more than an hour, pouring water through the collapsed roof.

The unidentified dead person was found in the burned building. One victim was hospitalized with serious burns.

The busiest time in the produce district is in the early morning hours. Most work is typically wrapped up by late morning.