Leslie Carter, sister of Aaron and Backstreet Boy Nick, died of a drug overdose, according to police.

 The 25-year-old Carter was pronounced dead Tuesday in upstate New York.

Her stepmother called 911 from their Mayville, NY home and told paramedics that Leslie was "asleep on her bed and not breathing."

The police report said that Leslie had a long history of mental illness and was taking medication for depression.