(CNN) — Park rangers spent Sunday searching for a teenage swimmer who was swept over a nearly 600-foot waterfall in California's Yosemite National Park over the weekend.
Aleh Kalman had been swimming about 150 feet from the edge of the Nevada Fall on Saturday afternoon when he was caught up in the swift current of the Merced River, the National Park Service reported. The 19-year-old Sacramento resident had gone to the park with a church group, the park service said.
Searchers on foot and a California Highway Patrol helicopter crew attempted to find Kalman on Saturday, but had to cut short efforts at nightfall. The grim task resumed Sunday, aided by three dog teams, the service said.