Italy's interior minister and leader of the right-wing League, Matteo Salvini, has called for three young men who allegedly gang-raped a 19-year-old American au pair to be chemically castrated if convicted.

The victim accused Roberto Mirabella, 20, Salvatore Castrogiovanni, 19, and Agatino Spampinato, 19, of luring her from a bar in Catania, on the east coast of Sicily, before raping her in a car park and filming the attack.

Following the three men's arrest, Mr Salvini tweeted on Wednesday: 'No leniency for the molesting worms who raped a tourist. Guaranteed jail time and chemical castration!'

Italy's interior minister, Matteo Salvini (pictured), has called for three young men who allegedly gang-raped a 19-year-old American au pair to be chemically castrated if convicted

In a tweet on Wednesday, Mr Salvini said: 'No leniency for the molesting worms who raped a tourist. Guaranteed jail time and chemical castration!'

On March 15, the three men offered the babysitter drinks before convincing her to go with them to another bar.

But instead they forced her into their car, and then raped her in turn, police said on Tuesday.

The victim tried to secretly call the emergency services but the group stopped her, the Italian Insider reported.

Roberto Mirabella (left), 20, Salvatore Castrogiovanni (right), 19, and Agatino Spampinato, 19, have been accused of raping the American teenager and filming the attack

Mirabella, Castrogiovanni, and Spampinato (pictured) were arrested on suspicion of rape on March 21

Police identified the three suspects after one of the men sent the victim a video of the alleged abuse via social media and invited her out again the following evening.

The American woman - who was an au pair in the city for three months - also showed officers footage of the suspects that she filmed while in the club.

Mirabella, Castrogiovanni, and Spampinato, were arrested on suspicion of rape on March 21 and taken to the Catania Piazza Lanza prison.

All three men deny the charges.

The victim has now returned to the United States, according to her lawyer, Mirella Viscuso, The Telegraph reported.