Authorities say five children died in a house fire in Spearfish.

The fire was reported at 4:23 a.m. Saturday at a two-story residence at the intersection of Ames and Oliver streets in Spearfish, a town of about 11,000 people in western South Dakota.

Spearfish police and fire officials say the victims were between the ages of 6 and 9 years old.

Officials say the house was engulfed in flames when firefighters arrived. A cause has not been determined.

No other details were immediately available.