(AP) — Wichita fire officials say four family members, including two children, have been killed in a mobile home fire.

Fire Chief Ron Blackwell said that the four family members died in a fire at their mobile home early Tuesday. Three other people were injured. He says the two children were found sleeping side-by-side in a bed.

Their identities have not been released.

Blackwell says another nearby fire in a mobile home was reported about four hours earlier, but officials don’t think the fires are related. One person was also injured in the first fire.

Fire officials are investigating the causes.