The search for missing hikers Joseph Orbeso, 21, and Rachel Nguyen, 20, at Joshua Tree National Park will continue until at least Sunday, Aug. 6, park authorities said Friday.

Orbeso, of Lakewood, and Nguyen, of Westminster, have been missing for a week in the scorching desert.

George Land, a spokesman for Joshua Tree National Park, said Friday, Aug. 4, the search would persist, but no new evidence or clues had been found that might lead to the missing pair.

Various areas of the 790,000-acre park have scoured without success, Joshua Tree Search and Rescue officials said.

Austin Young, of Lakewood, who is a friend of Orbeso, said Friday he may travel to Joshua Tree over the weekend to look for the couple.

On July 27, Orbeso and Nguyen left an Airbnb rental near Joshua Tree National Park to go hiking, officials said.

Authorities were alerted the following day when it was determined the couple hadn’t checked out. Officials found clothing, an iPad and food in their room.

Their car and fresh footprints were found in the park near Maze Loop.