Khloe and Kim Kardashian are safe after the vehicle they were in slid off a Montana road and into a ditch on Saturday.

Montana Highway Patrol Capt. Mark Wilfore says the accident occurred before noon on a highway between Bozeman and Belgrade, where the Bozeman Yellowstone International Airport is located. Wilfore said he did not know their destination.

Wilfore said a third person in the vehicle was not hurt and was not identified. He said there was no damage to the vehicle, which was pulled from a ditch and driven away. He said no citations were issued.

Wilfore says the accident occurred when the GMC Yukon being driven by Khloe Kardashian hit a patch of black ice and slid off the road on a two-lane road.

Kim Kardashian's publicist said Saturday afternoon that the sisters "are OK."