(WUSA) -- Montgomery County Police say they have found one of the teens from Olney who has been missing since January 12.
County police learned Nicholas (Cole) Balderson, 17, and Rachel Reilly, 16, might be in the San Antonio, Texas area and began coordinating with the San Antonio Police Department.
Thursday night, county detectives were contacted by San Antonio Police Department investigators who said they took Rachel Reilly into custody at approximately 8:15 p.m.
San Antonio Police had received information that the two teens may be staying at a homeless camp near a San Antonio truck stop, T and A Travel Center of America in San Antonio. They located a homeless camp to the rear of the truck stop, and police say when officers approached, two subjects matching the teens' descriptions fled on foot.
Police were able to stop and detain the girl and identified her as Rachel Reilly. Balderson was not apprehended.
Rachel Reilly was taken into custody by the San Antonio Police and is waiting to be reunited with family. Police say she appears to be uninjured and in good health.
Police say Balderson is still missing, and it is believed that he remains in the San Antonio area.
Anyone who may know the whereabouts of Cole Balderson is asked to call the Montgomery County Police Family Crimes Division at 240-773-5400 or the police non-emergency number at 301-279-8000.