An injured rock climber was hoisted out of Mission Trails Regional Park on Saturday and airlifted to a hospital, a San Diego Fire-Rescue official said. The man, possibly in his 40s, fell while climbing the rocks or cliffs above Father Junipero Serra Trail around 3:15 p.m. A fire-rescue helicopter lowered medics to the ground to assist the injured man. He was secured into a litter and hoisted up, then flown to a trauma center, a fire official said. About two dozen fire personnel took part in the hour-long rescue. No information was available on the extent of the man’s injuries or how far he had fallen.