Detectives are continuing to question two men, aged 18 and 21, arrested in connection with Friday’s London Underground attack as the government concluded a follow-up attack was not imminent and downgraded the UK terror threat assessment from critical to severe.

The home secretary, Amber Rudd, claimed “good progress” had been made in the investigation following the rush hour incident on Friday morning which involved a crude bomb which failed to detonate properly but still resulted in injuries to 30 people at Parsons Green tube station. Police searched three addresses in Surrey and west London on Sunday, one the home of a couple who fostered children and who were decorated by the Queen for their public service, the other believed to be the home of a 21-year-old man close to the perimeter road of Heathrow airport who was arrested late on Saturday. It was unclear what connection the third address had with the investigation.(theguardian)…[+]