Security agencies investigate claim Iran-linked group behind London ambulance arson

Met police say authenticating claim of responsibility by Harakat Ashab al-Yamin al-Islamia is priority'

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Security agencies are investigating whether a group linked to Iran is behind an arson attack on four ambulances belonging to a Jewish charity in north London.

The Metropolitan police said efforts to authenticate a claim of responsibility made by a group known as Harakat Ashab al-Yamin al-Islamia (HAYI) were a priority as they sought to track three hooded people caught on CCTV at the scene.