A teenager from Montgomery went missing after he and four of his friends decided to take a bath in the Fox River on Sunday afternoon in downtown Oswego, authorities said.

Oswego is approximately 45 miles southwest of Chicago.

Around 4:30 p.m., the Oswego Fire Protection District was announced on the missing of an 18-year-old man and a search was launched for him. His identity wasn’t made public.

Witnesses say five teenagers were playing in the river when one of them disappeared possibly swept away by a strong current.

Eight rescue boats and an airplane from the State Police were sent to look for him on the waters of Fox River. Water rescue crews from Montgomery, Aurora and Bristol Kendall were dispatched to the scene of the incident. The area was immediately crowded with dozens of fire trucks, squad cars, ambulances and water rescue crews. A command post was set up near Washington Street.

Unfortunately, high water and currents prevented drivers from entering the water, The Oswego Fire Protection District said, Chicago Tribune reported.

The search was called off late Sunday night without a positive result, leaving the young man’s family, friends, and concerned residents without the hope he would be found alive. The search was expected to resume Monday morning.