An official says police have arrested four Indian men for allegedly assaulting and stripping a female Tanzanian student after dragging her out of a car.

India's external affairs minister, Sushma Swaraj, tweeted Wednesday that she was deeply pained over the "shameful incident" over the weekend in Bangalore, India's information technology hub. She says police have arrested four suspects.

Bosco Kaweesi, a legal advisor to the All African Students Union, says three of her Tanzanian friends in the car also were beaten up by an angry crowd following a car accident in the area.

Kaweesi calls it a case of mistaken identity, saying the car was following the vehicle that hit a local woman, who died on Sunday.