Ambulance arson attack: what we know so far - The Latest

An investigation is under way into an arson attack on four ambulances belonging to a Jewish charity in north London. Efforts are being made to verify a claim of responsibility by a group known as Harakat Ashab al-Yamin al-Islamia (HAYI). Security sources have cautioned against a rush to tie Iran to arson and it has not so far been designated as a terrorist incident.