The body of a woman handed over by Hamas in the Gaza Strip is that of the kidnapped hostage Shiri Bibas, the Nir Oz kibbutz confirmed early on Saturday.

“The kibbutz announces with deep pain that she was murdered while being held hostage in Gaza,” said a spokeswoman.

The militant Palestinian organization Hamas handed over the body late on Friday to the Red Cross.

Hamas turned over the bodies of the 32-year-old German-Israeli woman’s sons, Ariel and Kfir – who were just 4 years old and 9 months old when they were abducted – along with another deceased captive, 84-year-old peace activist Oded Lifshitz, on Thursday.

Israeli forensic experts later determined that the remains in a fourth coffin did not belong to Shiri Bibas as Hamas claimed.