Halifax, Nova Scotia - A Canadian mother says her daughter hanged herself because she never recovered from an alleged rape by four teenage boys that left her deeply depressed and bullied in her community.

Leah Parsons said on Tuesday she took her 17-year-old daughter, Rehtaeh, off life-support on Sunday after she hanged herself last week. She says one boy took a photograph of the alleged assault in 2011, and her daughter was subjected to bullying after it went viral.

Parsons is dissatisfied that police concluded there were no grounds to charge the four boys.

Royal Canadian Mounted Police Corporal Scott MacRae says there was insufficient evidence to proceed with charges.

Nova Scotia Justice Minister Ross Landry says he has no plans to review the case because he has no reason to doubt the integrity of the police investigation. - Sapa-AP