An Iran-linked Islamist group Harakat Ashab al-Yamin al-Islamiya (also known as Ashab al-Yamin or HAYI) has claimed responsibility for an attempted firebomb attack on Kenton United Synagogue in Harrow, north-west London, overnight on Saturday, April 18–19, 2026.
According to the Community Security Trust (CST), a black-clad individual was captured on footage throwing a device through a window into the synagogue building. The incident caused minor smoke damage to an internal room but resulted in no injuries and no significant structural damage.
No one was inside the synagogue at the time of the attack, and emergency services responded quickly.







