A 21-year-old man has been arrested over a series of arson attacks, police have said, after a fire at a house owned by Prime Minister Sir Keir Starmer. The suspect was arrested in the early hours of Tuesday on suspicion of arson with intent to endanger life, according to the Metropolitan Police. He remains in custody. Emergency services were called to fires at the doors of two homes in north London within 24 hours of each other - one just after 1.35am on Monday in Kentish Town and the other on Sunday in Islington. Both properties are linked to Sir...