Keir Starmer warns Iran against destabilizing Britain, says it will not be tolerated

On 2026-05-05, UK Prime Minister Keir Starmer warned at a Downing Street roundtable that Iran's attempts to destabilize British society 'will not be tolerated.' He said the government was investigating whether Iran or other foreign states were behind recent antisemitic incidents in the UK and said there would be 'consequences' if Iran were found responsible.