Islan Nettles, a 21-year-old transgender woman who was brutally attacked in New York City, has died from her injuries.

Nettles was attacked while out with a friend, another transgender woman, last Saturday evening in Harlem. A group of men attacked Nettles, shouting homophobic and transphobic slurs. One man, 20-year-old Paris Wilson, was taken into custody.

Nettles was rushed to Harlem Hospital, where she slipped into a coma. On Thursday, she was declared brain dead and taken off life support.

On Friday, the medical examiner's office determined Nettles died from blunt impact injuries to the head, the AP reported.

Mayoral candidate and City Council speaker Christine Quinn joined other council members in denouncing the attack

“An attack against one person, or one community, is an assault against all New Yorkers,” she said in the joint statement. “We ask all New Yorkers to come together, to embrace our differences and to denounce hate violence.”

New York City is facing a rash of anti-gay attacks, including the murder of Mark Carson in May.

(Related: In New York, thousands march to protest killing of Mark Carson, a gay man.)