An Islamic State group follower accused of plotting terrorist attacks at London landmarks also showed beheading videos to children worshipping at a mosque where he taught, a court has heard.

Umar Haque hoped to radicalise the youngsters and allegedly encouraged them to carry out violent role play against the police.

The 25-year-old is accused of planning an attack in the capital and having considered potential, targets including Big Ben, the Queen's guards, Heathrow, the City of London, Westfield shopping centre, Transport for London and Parliament.

Haque was allegedly helped with his planning by Abuthaher Mamun, 19, while Nadeem Patel, 26, agreed to provide Haque with a firearm, their trial at the Old Bailey was told.

Muhammad Abid, 27, is accused of failing to tell the authorities of Haque’s plans.