Firefighters were dispatched around 4:45 p.m. Monday to Bosselman Tank & Trailer.
Grand Island Fire Chief Tim Hiemer says the first explosion probably occurred after the pressure relief system failed on a tanker that was in the bay where the fire broke out. He says the other blasts probably were tires exploding on the tanker.
Hiemer says the tanker had just fuel residue and fumes inside. The explosions and fire were contained to the bay.
The fire cause is being investigated.