Counter-terrorism police launched an investigation after three hooded suspects destroyed four Jewish volunteer ambulances in a targeted arson attack in north London.The explosions of oxygen cylinders inside the vehicles shattered windows at the Machzikei Hadath synagogue and nearby residential buildings.Prime Minister Keir Starmer condemned the incident as a shocking antisemitic hate crime while the government pledged to replace the essential medical fleet.Thirty residents were evacuated to a local shelter during the emergency operations and no injuries were reported following the early morning blasts.