A 9-year-old girl who was reported missing after swimming in the Mattawamkeag River in northern Penobscot County on Friday was found dead Saturday morning, a spokeswoman for the Department of Inland Fisheries and Wildlife said.

The girl’s body was found about 9:30 a.m. in the Mattawamkeag River, downstream from where she and an adult male had entered the water the day before, said the DIF&W spokeswoman, Bonnie Holding. The other swimmer made it safely to the other side, Holding said, but a swift current in the Sleugundy Heater Gorge carried the girl away.

The girl’s identity had not been released by the Maine Warden Service as of Saturday night. Holding also didn’t know the identity of the other swimmer, but she said the girl was camping near the river with family members.

The girl had been staying with her family at the town-owned Mattawamkeag Wilderness Campground and Park.

The adult was able to make it to the other side, but the girl didn’t turn up there. That’s when 911 was called.

Game wardens responded Friday night along with other local agencies, and they conducted an unsuccessful ground search. Officials were back on Saturday, including the Maine Warden Service dive team, which discovered the girl’s body.

Authorities told WCSH-TV that the area where the girl was swimming is unsafe.

“Where people like to swim, and jump off some ledges there into the deeper water, now this time of year with all the recent rain that we’ve had, very high waters, … (it’s) unsafe to swim there,” Lt. Adam Gormely of the Maine Warden Service told the station.