Three women were allegedly gang-raped at gun-point by six men in Greater Noida
The women worked at a brick factory.
Police say the armed men locked up other factory workers and looted their houses nearby before assaulting the women.
The husband of one of the women has reportedly told the police that the attackers came to their house after midnight on Tuesday, claiming to be policemen investigating a case. The men allegedly barged in, dragged out his wife and took turns to rape her. They did the same with two other women.
Policing in Uttar Pradesh came under sharp focus after armed robbers stopped a family on the highway in Bulandshahr, dragged out a woman and her teen daughter and gang-raped them in July.