Actors, musicians, activists and other public figures wrote the letter calling on Prime Minister Keir Starmer to "end the UK's complicity in the horrors in Gaza"
Pop star Dua Lipa joined around 300 UK celebrities in signing an open letter on Thursday urging Britain to ban arms sales to Israel, following similar demands from lawyers and writers.
Actors, musicians, activists and other public figures wrote the letter calling on Prime Minister Keir Starmer to "end the UK's complicity in the horrors in Gaza".
Albanian-British singer Dua Lipa has been sensitive about the war in Gaza and last year criticized Israel's offensive as a "genocide."
Israel has consistently denied accusations of genocide and says its campaign is aimed at crushing Hamas after the deadly October 2023 attack by Palestinian militants.
Other signatories include actors Benedict Cumberbatch, Tilda Swinton and Riz Ahmed, and musicians Paloma Faith, Annie Lennox and Massive Attack.
"You can't call it 'intolerable' and continue to send weapons," reads the letter to Labour Party leader Starmer, organized by Choose Love, a UK-based humanitarian aid and refugee advocacy charity.
Sports commentator Gary Lineker, who resigned from his role at the BBC after a social media post containing anti-Semitic imagery, also signed the letter.
The signatories called on the UK to ensure “full humanitarian access to all of Gaza”, to broker an “immediate and permanent ceasefire” and to “immediately suspend” all arms sales to Israel.
"The children of Gaza cannot wait another minute. Prime Minister, what will you choose? Collaboration in war crimes, or the courage to act?" the letter continues.
Earlier this month, Starmer criticised Israel's "savage" military offensive in Gaza and promised to take "further concrete action" if it did not stop - without detailing what the action might be.
Last September, the UK government suspended 30 of 350 arms export licenses to Israel, saying there was a "clear risk" that they could be used to violate humanitarian law.
Global anger has grown after Israel ended a ceasefire in March and stepped up military operations this month, killing thousands of people in a two-month span according to figures from the Hamas-run health ministry.
The humanitarian situation has also caused alarm and fears of famine after a two-month blockade on aid entering the devastated territory.
Over 800 British lawyers, including Supreme Court judges, and around 380 British and Irish writers, warned that Israel would commit a "genocide" in Gaza in open letters this week.