A man has been arrested in connection with the rape of a 15-year-old girl in west Belfast at the weekend.
The teenagers were all ordered into the grounds of a golf centre
The arrest followed the search of a house in the Twinbrook area on Friday, after which a man walked into Woodburn police station and was detained.
The girl, on holiday from England, was raped twice in the Blacks Road area while her three teenage friends were threatened with a metal bar.
Police have said they are now following a definite line of inquiry.
On Wednesday night, several hundred people attended a vigil to show their revulsion at the rape.
It took place at the forecourt of a filling station where the teenager was first raped.
The teenagers were then ordered into the grounds of Colin Valley Golf Centre, where the girl was raped again.
Local community worker John Fox said residents wanted to show solidarity with the victims.
After the rape, there were claims that police officers did not act on information about the incident. The PSNI may hold an investigation into the claims.