Leslie Carter, the sister of Nick and Aaron Carter, died on Tuesday (January 31st) at the age of 25. An autopsy completed on Wednesday showed no visible signs of trauma, but they are waiting on the results of a toxicology report to determine the cause of death.

According to TMZ, the family thinks that Leslie might have died from an overdose of prescription medication. She was reportedly battling an addiction, and although she seemed to be on the road to recovery, it's suspected pills are behind her sudden death.

Leslie was married in 2008 and leaves behind her husband Mike, and their 10-month-old daughter named Alyssa.

Leslie, also a singer, appeared on the family's 2006 reality show, House of Carters. Her single, "Like Wow" was featured on the soundtrack for Shrek in 2001.

NICK AND AARON RESPOND

Aaron Carter, who is currently starring in the off-Broadway production of The Fantasticks, is taking a temporary leave from the show in the wake of Leslie's death.

A spokesperson for the production told E!, "Aaron is taking a few days off from the show. His Fantasticks family loves him and offers him support and prayers during this difficult time. Aaron's understudy and friend, Matt Leisy, will be covering Aaron's role until his return. We thank everyone for the outpouring of concern for Aaron."

Nick, however, is continuing on with his professional duties. His publicist said, "Nick Carter is thankful to the many people and the fans who have shared their wishes and prayers during this tragic time. We want to let the fans know the tour will go on as promised."

Nick himself added, "Performing is cathartic to me and I am dedicating the rest of my tour to my sister since she loved to watch me perform."