HIBBING, Minn. (AP) — Minnesota authorities say a house fire has killed two adults in Hibbing and seriously injured two children.

The Hibbing Fire Department says the fire was reported at 1:37 a.m. Tuesday and destroyed the home before crews put out the blaze. WDIO-TV reports the two adults and two children did not have a pulse when firefighters pulled them out of the house. The fire department says crews were able to resuscitate the children and they were taken to the Hibbing hospital with life-threatening injuries.No names have been released because relatives are still being notified.

Fire officials say a third juvenile was outside the home when crews arrived and was also hospitalized. It's unknown how everyone is related. The cause of the fire is under investigation.

There was also a deadly fire in Iowa.

Authorities say a house fire discovered early Christmas morning claimed four lives in eastern Iowa.The city of Blue Grass Police Department said in a news release that fire trucks were sent to a burning house around 12:30 a.m. Monday. The department says that of the four people inside when the blaze erupted, one managed to make it outside but died later at a hospital. The three others died inside.