More than 18 buried shells have detonated since mid-August as blaze continues to spread across North York Moors

More than 18 buried shells have detonated since mid-August as blaze continues to spread across North York Moors

Residents warned to prepare to flee homes as smoke fills air and emergency crews call in back-ups from other areas

Live explosives on army training sites in the UK countryside mean many wildfires cannot be tackled.