British Prime Minister Keir Starmer announced Tuesday that the U.K. would recognize a Palestinian state in September — unless Israel takes steps to end the starvation of Gaza and agree to a ceasefire with Hamas.

Britain has announced it will recognize a Palestinian state in September unless Israel agrees to a ceasefire in Gaza, stops building settlements in the West Bank, and commits to a two-state solution.

Sir Keir Starmer's pledge to recognise a Palestinian state could break international law, an influential group of peers has warned. Some 38 members of the House of Lords, including some of the UK's most eminent lawyers, have written to Attorney General Lord Hermer about the Prime Minister's announcement.