A teenager has admitted killing an American tourist and injuring five other people during a knife rampage in London's Russell Square, the scene of one of the 7/7 bombings.

A 19-year-old man arrested over the murder of a US tourist in Russell Square has been described as a “little gentleman” and a “nice, quiet kid”, as police continue to investigate the knife rampage.

Friends of the teenager arrested over the murder of a US tourist in the Russell Square stabbing attack have spoken of their shock.