A 35-year-old man who went missing with a 14-year-old girl is being questioned by officers who spent five days looking for the teenager.
Lorna Vickerage disappeared from her home near Doncaster, South Yorkshire, on Monday with John Bush.
Lorna and Bush were spotted by police at Euston station in central London yesterday following a five-day nationwide police hunt, and he was arrested. Police said Bush has now been returned to South Yorkshire and will be questioned on Saturday.
A South Yorkshire Police spokeswoman said: "The 35-year-old Doncaster man arrested on suspicion of child abduction in London yesterday, Friday 14 June, is now back in South Yorkshire and will be interviewed by detectives today.
"Officers continue to work on the investigation over the weekend."
Lorna's mother has said she is "so happy" that her daughter is safe and well.
Christine Vickerage wrote on Facebook after hearing the news: "My gawgess lorna has just been found i am so happy."
It appears that Lorna and Bush made their way to London via Leicester, Peterborough and Watford. Police said Bush was passing Lorna off as his daughter.
Detective Chief Inspector Craig Robinson, who led the hunt, said yesterday: "The staff we sent down from South Yorkshire to London were hot on the trail but, prior to us getting there, BTP (British Transport Police) plain-clothed officers on duty in the station saw the couple and arrested them.
"So it's been a fantastic result. They're both safe and well."
Robinson said Lorna's parents were "overwhelmed and over the moon".
He said: "I've personally spoken to the mother and father and updated them with proceedings so far.
"They feel absolutely overwhelmed and over the moon. They can't say how much they want to thank everyone who's been involved."