Tiffany Martinez, the 14-year-old girl who suffered brain damage after nearly drowning on Sunday, has died, hospital officials said yesterday.

Tiffany, of East Providence, was celebrating her birthday with her family at Warwick’s Conimicut Point. She was in the water with another youth when the current shifted. She struggled to keep the 8-year-old boy’s head above water, a move the boy’s mother credited with saving her son’s life. But by the time the girl’s stepfather, Carlos Gonzalez, reached her, she was exhausted from the effort and no longer able to stay afloat.

Tiffany had been in the intensive-care unit of Hasbro Chidren’s Hospital since Sunday.