Three men have been jailed for a combined 33 years for being involved in the supply of firearms to gangs in south London.
Hume Bent, 47, Carlos Moncrieffe, 47, and Christopher McKenzie, 26, were sentenced at Croydon Crown Court for conspiracy to supply firearms and ammunition.
More top news
The Met Police says 143 firearms have been handed in at stations across the capital in just seven days, including two antique machine guns.
The pair filmed themselves clinging on as the train travelled from Essex to London at high speed.
Around 60 firefighters tackled the blaze at the four-storey building in Daleham Gardens, Hampstead, that broke out early on Tuesday.