Concern is growing for a man from Potters Bar who is missing after Hamas launched attacks on Israel last weekend.
Jake Marlowe was working at the Supernova Festival near the Gaza Strip, when militants stormed the site firing rockets.
More than 260 festival-goers were killed, with many more taken hostage.
His parents, Lisa and Michael, have launched an appeal for information, having not heard from their son since the attack.
"He called me at 4.30am to say all these rockets were flying over," they told the Evening Standard.
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"Then, at about 5.30am, he texted to say ‘Signal very bad, everything OK, will keep you updated, I promise you."
An Israeli embassy spokesman said: "We don’t know for sure that he is taken hostage or dead or in a hospital."
Mr Marlowe moved to Israel in 2021 and was living in Ma’alot, where he was employed as a carpenter.
He also attended the Jewish Free School, with headteacher Dr David Moody saying: "We are heartbroken at what has happened.
"Nathanel is fondly remembered within the school and we think of him with nothing but love. Equally, we have seen reports that Jake Marlowe is missing and we all pray that he is found soon."
The Welwyn Hatfield Times has contacted the Home Office and Israeli Embassy for comment.
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