In Delhi, four persons have been arrested in connection with recovery of 105 passports from an unclaimed baggage at the Indira Gandhi International Airport.The Delhi police today claimed to have smashed a human trafficking racket with this. A case was registered early this month after Customs officials handed over the baggage which came in a Turkish Airlines flight a year ago and was seized during checking.Investigators claimed that the racket used Qatar, Turkish and Emirates airlines for trafficking people to the United States. They used to make people come to Delhi and take them to Istanbul and then Guatemala. The illegal immigrants were made to enter the US through forests.