OVERTON, Nev. — Two female hikers were found dead at a state park in southern Nevada, authorities said Sunday.

Nevada State Police did not release any details about the identities of the hikers or the possible cause of death. However, the southern part of the state remains in an excessive heat advisory, with the high temperature on Saturday being 114 degrees (45 degrees Celsius).

Authorities said they were asked to do a wellness check shortly before 3 p.m. Saturday for two women who didn’t finish their hike at Valley of Fire State Park, south of Overton in the Moapa Valley.

A group of hikers reported seeing the women entering the trails in the morning and became concerned when they noticed the couple had not returned.

State police said a woman was found dead on the road and the other body was located in a canyon.

Valley of Fire State Park is about 65 miles (105 kilometers) northeast of Las Vegas.

There have been seven heat-related deaths in Clark County as of mid-July, according to the Southern Nevada Health District.