Extremists with ties to Hezbollah, the Iranian-backed Lebanese militant group, were caught stockpiling explosive material in London in 2015, an article published by the Telegraph on Sunday revealed.

The article says the extremists were caught stockpiling ice packs containing ammonium nitrate, a common ingredient in homemade bombs, at a location in the outskirts of the British capital.

According to the Telegraph, a national British daily newspaper based in London, the Hezbollah-tied extremist plot was uncovered by MI5 in 2015 just after the UK had signed the Joint Comprehensive Plan of Action (JCPOA), otherwise known as the Iran nuclear deal.

Read more: Al-Arabiya