Border Patrol agents in San Diego rescued an injured cyclist who fell more than 50 feet from a cliff and into a remote canyon, authorities said.

On Saturday, San Diego Sector Border Patrol agents working in the vicinity of Otay Lakes County Park in California “heard cries for help originating from a canyon adjacent to the Sweetwater Dam,” according to a statement by U.S. Customs and Border Protection on Wednesday.

After hearing the calls for help, agents began investigating and hiked into the canyon where they encountered a man suffering from multiple serious injuries, officials said.

“The cyclist told agents he lost his footing while walking his bike along a trail on the canyon wall, falling more than 50 feet into the bottom of the canyon,” CBP said in their statement regarding the incident. “Unable to move for hours, he called for help until he was finally found by the Border Patrol agents.”

Additional agents, including a Border Patrol emergency medical technician, arrived on scene to assist with the rescue operation and stabilize the injured man, authorities said.

“There is no doubt in my mind that these agents saved this man’s life,” said San Diego Sector Acting Chief Patrol Agent Jeffrey D. Stalnaker. “I am truly thankful the agents were in the right place at the right time to make a difference.”

The injured cyclist was airlifted by a San Diego Fire-Rescue helicopter and taken to a local hospital to receive treatment for his injuries. Officials did not give any details on the man’s medical condition.

Agents returned to the scene the next day to recover the bike and other personal belongings, ultimately delivering the items to the cyclist’s wife, authorities said.