HORSE CAVE, Ky. (AP) — The Latest on two tour groups trapped by rising water in a Kentucky cave (all times local):

5 p.m.

Authorities say all 19 people who were trapped in a Kentucky cave have waded through neck-deep water to get out.

Hart County Emergency Management Director Kerry McDaniel says the group of Clemson University students walked out of the cave without assistance Thursday after being trapped by rising water.

McDaniel says there is only one way in and out of the Hidden River Cave in south-central Kentucky.

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4:30 p.m.

Authorities say rising water from heavy rains has trapped 19 people in a Kentucky cave.

Horse Cave Fire Chief Donnie Parker says Thursday that two tour groups are trapped in Hidden River Cave in south-central Kentucky.

Parker says two local police officers who tried to rescue the tourists are among those still inside. He says the tour groups have been in the cave for several hours.

He says authorities have not been in communication with the trapped people and are unsure where they are in the cave. Parker says four people were able to escape.

He says a dive team and other rescue groups are at the scene.