Part of a foot, in a shoe, spotted in Yellowstone hot spring

Yellowstone National Park officials are investigating after a park employee spotted part of a foot, in a shoe, floating in a hot spring in the southern part of the park, officials said Thursday.

Tuesday's discovery at Abyss Pool led to the temporary closure of the West Thumb Geyser Basin and its parking lot. The area has since reopened.

The park did not have any other information about the investigation to make public on Thursday, park spokesperson Morgan Warthin said.