Harakat Ashab al-Yamin al-Islamia

Harakat Ashab al-Yamin al-Islamia, commonly known as Ashab al-Yamin or HAYI, is a pro-Iranian Islamist group that has taken credit for attacks against Jewish schools, synagogues and charities in Europe, as well as American, Israeli and Iranian opposition targets, since March 2026. The group's activities have primarily focused on attacks on London's Jewish community, with additional attacks across Europe. It is believed to be a front group for the Islamic Revolutionary Guard Corps (IRGC), who outsource the attacks to local criminals and use the group to create plausible deniability. The attacks have been investigated by counter-terrorism police, with 37 arrests already made, and additional police resources dedicated to preventing and responding to attacks.