The escalation follows an assessment by Prime Minister Andy Burnham that the IRGC almost certainly directed the operation, a finding backed by a joint statement from 29 nations including the US, France, and Germany. While the UK has sanctioned 2 Iranian nationals and previously summoned Iran's ambassador to London, Tehran has dismissed the accusations as a "false-flag operation" meant to deflect from its own military concerns. Some reporting indicates that all 7 suspects detained in connection with the case were released on bail, complicating the attribution.
