When Anya Bonget’s daughter Sofia told her she was going to an outdoor rave party in Israel’s Negev Desert, she saw no particular reason to worry. 

The venue was Kibbutz Re’im, just two miles from the border with Gaza, but with the frontier heavily-guarded, it seemed perfectly safe.

Then, at 8am on Saturday morning, she rang Sofia to check up on her, after hearing news that terrorists had breached the border fence nearby.

“Mummy, they’re killing us,” was her reply. “They’re shooting at us.”

Sofia, 21, was part of a crowd of revellers at an outdoor trance party that was targeted by the terrorists during their dawn raid on Saturday. 

Mobile phone footage showed the gunmen chasing the partygoers across a stretch of the Negev desert, shooting some and kidnapping others. At least 250 were killed.

Ms Bonget, 42, told The Telegraph of her phone conversation with Sofia as she joined other anxious parents giving DNA samples at an office near Israel’s Bun Gurion airport yesterday. As her daughter spoke her last words to her, she could hear screams in the background.

Her daughter then hung up, but half an hour later sent a text saying she was “lucky to have the best parents in the world”.

“That felt like a goodbye,” said Ms Bonget, who was hiding her tear-stricken eyes behind sunglasses.

Sofia had recently been discharged from the army - Israel has compulsory military service for both men and women - and was enjoying her gap year before applying for university.

“She just said she was going to this fun festival,” her mother added. “The fact that it was close to Gaza - it didn’t matter to anyone.”