A teenage boy visiting Yellowstone National Park was seriously burned when his foot broke through the ground near a geyser by the infamous Old Faithful, officials said.

A 17-year-old boy suffered serious burns when his foot broke through the ground near a geyser close to Old Faithful in Yellowstone National Park on Monday (July 28). According to the National Park Service,

It was the first known thermal injury in the park this year. Officials urged visitors to stay on designated boardwalks and trails in thermal areas.