Hundreds of people, including police, rescue officials and volunteers, have been searching for a girl who witnesses said was attacked and abducted in a suburb of Los Angeles.
The girl, thought to be aged between 14 and 16, was seen on Monday being dragged away by a man at a leisure centre in El Sereno, east of central LA, as she was screaming and kicking.
According to witnesses, the man had also punched the girl and removed some of her clothing.
The Los Angeles Times reported that some 250 rescue workers and volunteers have combed the area around the centre, trekking through steep terrain. They were helped by helicopters and bloodhounds.
The search teams found a pair of Puma tennis shoes and leggings, but no other signs of a kidnapping, the newspaper said.
"While we have located some physical evidence that supports the abduction, we have not found any evidence that the young lady is still in the park," Los Angeles Police Chief Charlie Beck told a news conference.
No reports for a missing person matching the girl's description have been filed.
The search was called off on Tuesday afternoon and there are no plans to resume it in the area, but police will continue investigating, news reports said.
Authorities have released a composite sketch of the man, who is believed to be between 18 and 20.