Expressing deep pain over the Sunday incident on microblogging site Twitter, the minister said she has sought a report from the Karnataka government and asked Chief Minister Siddaramaiah to ensure safety of foreign students.
"We are deeply pained over the shameful incident with a Tanzanian girl in Bengaluru. I spoke to the chief minister Karnataka. He informed me that a criminal case has been registered and four accused have been arrested," Sushma Swaraj said.
"I have asked the chief minister to ensure safety and security of all foreign students and stringent punishment for the guilty. I have asked for immediate report from the Government of Karnataka," she said in her tweets.
According to media reports, a mob of residents allegedly attacked and stripped a Tanzanian girl after dragging her out of the car in which she was travelling along with her three friends. Her friends were also beaten up.
The incident took place after a woman was mowed down on the outskirts of Bengaluru on Sunday.
The reports also said that the 21-year-old woman narrated the incident to police officials on Wednesday.