A 5-year-old Great Falls boy has been found safe at a Las Vegas hotel, and his mother was arrested and is facing a felony charge of parental abduction, Fairfax County police said.

Police said someone who had seen news reports about the case recognized the mother and son and tipped off authorities. Las Vegas police detectives used hotel surveillance video to confirm that the pair was Rebecca Serafin, 32, and her son, Cameron, authorities said.

Cameron Serafin was unharmed, police said. They said his mother is being held as a fugitive from justice. Police in Fairfax had previously issued a warrant charging her with parental abduction.

Police said Rebecca Serafin was supposed to return Cameron to his father on April 7 but did not show up. They said she altered her appearance and her son’s appearance to avoid detection.

The two were spotted at airports in Alabama and Las Vegas last week.