Women, working as brick-klin workers were raped when some robbers barged into their houses in the intervening night of Wednesday and Thursday, police said.
"The robbers struck at the houses at around 12.30 AM in the intervening night of yesterday and today and after looting the houses they raped the three women," police official quoted as saying.
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An FIR has been registered in the matter, Greater Noida Superintendent of Police Sujata Singh said, adding medical examination of the victims have been conducted.
An investigation is underway in the matter, she said.
(With inputs from PTI)