TULSA, Oklahoma - Investigators are looking into the cause of an overnight fire at a home near Virgin and Martin Luther King Boulevard.

Fire crews say the home had stored oxygen tanks inside, and some of them may have exploded. Firefighters told News On 6 they removed about a dozen tanks from the house.

Everyone inside was able to make it out safely, though an elderly man was treated at the scene for smoke inhalation. 

Firefighters say a pet did not survive.