NORTH LITTLE ROCK, Ark. (AP) — Authorities say three people have died after a fire early Tuesday at a North Little Rock apartment complex.

The fire broke out shortly after 2 a.m. at an apartment near Shorter College, authorities said. North Little Rock Fire Department Capt. Dustin Free told the Arkansas Democrat-Gazette that three adults died in the blaze.

The fire, which was extinguished by about 7 a.m., was contained to one apartment but caused the second floor of the building to collapse onto the first, Free said.

“This was an all hands on deck situation,” he said. “We work every day to save a life but sometimes we are notified too late. The firefighters came in and tried to stop the fire aggressively.”

The cause of the blaze remained under investigation.