Several hikers had to be rescued Wednesday afternoon at Catalina State Park north of Tucson.

Authorities were notified shortly before 2 p.m. about several hikers in distressed on the trail to Romero Pools, according to a news release from the Pima County Sheriff's Department.

Searchers learned that seven people began hiking at 6 a.m. to the pools. However, within an hour two of the hikers returned to the parking lot because of the heat.

The other hikers reached Romero Pools around 9 a.m. and rested before starting back down. On the way down they got lost for a period of time. The hikers eventually found the trail again but three of them began having heat-related problems. One of them called her mother, who called 911.

Personnel with Pima County Sheriff's Department, Golder Ranch Fire Department and the Northwest Fire District hiked up the trail and made contact with the party.

One of the hikers appeared to be suffering from heat exhaustion and had to be carried down the trail. The others made it down on their own power.

All the hikers were evaluated medically and one, a 20-year-old woman from Illinois, was taken by ambulance to the hospital.

Wednesday's high in Tucson was 108 degrees.