Firefighters and police were called to Highfield Road in Golders Green at around 01:40 GMT after four Hatzola ambulances were found on fire.
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Footage from the scene shows several suspects approaching one of the vehicles before it is engulfed in flames, while another video captures a large blaze and an explosion.
Images show emergency crews securing the area as investigations began.
Authorities said the incident is being treated as suspected arson and a possible antisemitic hate crime.
