In India, an app caused outrage in which more than a hundred Muslim women were offered for "purchase" in an online auction.
In the meantime, a 19-year-old woman and two twenty-one-year-olds have been arrested, the police said on Wednesday.
Further arrests are planned.
The app showed pictures of women and read degrading texts, including well-known journalists, activists, a pilot and a politician, as reported by Indian media.
Several of the women concerned had previously expressed criticism of the Hindu nationalism that is growing in India, which is predominantly Hindu, and the treatment of religious minorities.
The app called "Bulli Bai" was online over the weekend and was removed from Microsoft's open source software developer platform GitHub just a few hours later.
"Bulli" is a derogatory slang word used by radical Hindus for Muslim women.
There was initially no evidence that actual “sales” had taken place via the app.
A police spokesman said the motive behind the app is still being clarified.
Information technology minister Ashwini Vaishnaw said that a team from his ministry is coordinating action with the police.
About half a year ago, a similar website offered more than 80 Muslim women accordingly.
There were no arrests at the time.