PONTIAC, Mich. (AP) — Authorities say two men died and five people were injured early Monday in a fire at a multi-family dwelling in Pontiac.

Eleven adults were in the home when the fire was reported around 2:44 a.m. Oakland County Sheriff’s Department officials say some people jumped to safety from the second story of the home.

They included a 36-year-old man who said he instructed his stepson — a 19-year-old with autism who was staying with his stepfather — to follow him out the window. The stepson refused to jump and wasn’t seen exiting the home, authorities said. They said he has not been accounted for.

A fire investigator is still working to determine the cause of the blaze.