A Camden woman who stabbed her identical twin to death during a drunken street fight is now headed to prison.

Amanda Ramirez received a six-year sentence Thursday. The 27-year-old had pleaded guilty in September to manslaughter.

Ramirez initially denied stabbing her sister, Anna, outside an apartment complex in Camden on June 22. She later admitted to the stabbing but claimed she had acted in self-defense after her sister got a knife and came at her.

Ramirez has said the stabbing occurred after a night of heavy drinking, adding that she can't remember why she and her sister started fighting.

The brawl ended when Ramirez stabbed her sister once in the chest.

The Associated Press wire services contributed to this report.