Four boys, aged 12 and 14, were arrested in New Castle, Delaware, on charges of kidnapping and rape of a girl.
The case dates back to December 11, when the four young women forced the girl to enter a house while they threatened her with a gun to keep her quiet, according to the victims.
Last week, with the search warrants, the authorities arrested the four suspects: one is 12 years old, two 13 and one 14 years old. All of them are accused of abduction, conspiracy and illegal sexual contact. One of them, at the age of 13, was also accused of robbery, possession of a deadly weapon while committing a crime, as well as other crimes.
The police fear that there will be other victims of the same group.