Police in London are investigating a security scare near the Israeli Embassy after suspicious items were found. The probe is linked to a video by a pro-Iranian group, Harakat Ashab al-Yamin al-Islamiyya, claiming a drone attack using 'radioactive and dangerous materials'. Specialist chemical and nuclear response teams were reportedly deployed as a precaution. Authorities say there is no confirmed attack and no immediate risk to the public. Amid investigation, Kensington Gardens in central London has been closed. The Royal Parks and people are being urged to avoid the area.