Hundreds of volunteers have been searching for a Westminster duo after the pair went missing in Joshua Tree.
Rachel Nguyen and Joseph Orbeso have been missing since July 27 after the pair went on a hiking trip for Nguyen's birthday.
The family of the California State University, Fullerton students grew concerned when the two friends failed to check out of their Airbnb on Friday. The duo left all of their belongings behind.
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"We're definitely worried about Rachel and her friend," Nguyen's uncle, Son Nguyen said. "We've gone through five days of prayers."
Volunteer searchers found Nguyen's car near a Maize Loop and have since been working to find Nguyen and Orbeso.
Officials are working with helicopteers and K-9 assistance to find the missing hikers and urge anyone with information on the pair's whereabouts to contact authorities.
Anyone who has seen the two friends or has had contact with them is encouraged to call San Bernardino Dispatch at 909-383-5652.