Northern Minnesota authorities say two adults and two children who'd been ice fishing on Lake of the Woods when a blizzard hit and were considered missing have been located and are OK.

Family members of the anglers reported them missing on Tuesday morning and said they hadn't heard from the party since Friday.

The Lake of the Woods County Sheriff's Office said deputies have been helping rescue stranded anglers since Sunday and received several reports of people unaccounted for.

"In all instances, the Sheriff's Office was able to locate those unaccounted for and have assisted in rescuing those who wish to be rescued," the agency said in a statement.

Details were expected to be released later Tuesday.

The sheriff's office said plows were still working to reach two groups in fish houses on the lake and it dispatched deputies on snowmobiles to check on any remaining houses.

A Border Patrol helicopter flew over the lake Tuesday looking for signs of anyone in possible distress, "but during yesterday's flight there seemed to be no one in need of assistance," the department added.