(NAPERVILLE) Three people were rescued Tuesday after their raft flipped on the DuPage River near the Naperville Riverwalk in the western suburb.

Two passersby called 911 just before 4:15 p.m. after they saw three people fall into the water from the raft near the 400 block of Aurora Avenue, fire officials said.

When emergency officials arrived, two people had made it out of the river but a 19-year-old man had climbed into a nearby tree, officials said.

Firefighters placed swift water technicians downstream as safety swimmers, and rescued the man using a boat tethered to a rope system, officials said.

He was brought safely to shore by 5:25 p.m., officials said. All three people were evaluated by paramedics and did not need to be taken to a hospital.

No firefighters were hurt during the rescue, officials said. Crews rom nearby Lisle, Woodridge, Downers Grove and Aurora assisted in the specialized water response.