The Delhi Police arrested three men on Wednesday for attacking a 17-year-old girl with acid in Dwarka area, reported The Indian Express.

The attack took place at Mohan Garden area of Dwarka More at around 7.30 am, following which the girl was taken to the city’s Safdarjung Hospital.

Deputy Commissioner of Police (Dwarka) M Harsha Vardhan said two persons on a bike attacked her with an acid-like substance. He added that the victim was with her younger sister at the time of the incident and named two persons who could be responsible for the attack.

The police later identified a third suspect in the case, who was also arrested along with the men on the bike, reported The Indian Express.

The girl has suffered 7% to 8% facial burns and her eyes have also been affected, a doctor at Safdarjung Hospital told PTI. She is admitted to the burns Intensive Care Unit ward and is stable.

The teenager’s father has said he does not know the attackers.

“She was studying in Class 12,” he said. “If I had known about any such thing [harassment], I would have taken care and dropped her to school.”

Meanwhile, Delhi Lieutenant Governor Vinai Kumar Saxena has asked the police commissioner to file a detailed report on the attack and how the acid was procured. In 2013, the Supreme Court had directed states and the Centre to regulate the use of acid across the country to stop such attacks, especially against women, reported the BBC.

The top court had said that those buying acid will have explain why they need the chemical. The order had directed Centre and state governments that sales of acid will have to be reported to the police.

Delhi Chief Minister Arvind Kejriwal also demanded strict action against the accused persons on Wednesday.

“This cannot be tolerated at all,” the Aam Aadmi Party leader tweeted. “How did the accused gather so much courage? The accused should be given the strictest punishment. The safety of every girl child in Delhi is important to us.”

The Delhi Commission for Women has issued a notice to the Aam Aadmi Party government in the capital, seeking a report on the retail sale of acid and action taken against the shop or seller of the acid. The notice also sought details of any past complaints of threats submitted by the girl or her family, and a copy of the first information report registered in the case.