Firefighters are tackling a huge blaze which broke out at an industrial park close to an aerodrome in Northamptonshire.
Shocking pictures show huge flames engulfing a building, prompting nearby businesses to evacuate.
Stunned locals say ash is falling 10 miles away, and police have reportedly urged people nearby to keep their windows closed.
A full emergency services operation is underway close to Sywell Aerodrome.
The blaze broke out at around 12.30pm.
Six fire crews are tackling the fire, and roads around the site have been closed by police.
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The fire is thought to have broken out in a warehouse.
A police spokesman said: “Residents in the local area are asked to keep their doors and windows shut for health and safety reasons while our colleagues at @northantsfire deal with this.”
People living in Kettering - 10 miles away - say ash has been falling as a result of the fire.
The cause of the fire is not yet known.
Scott Brown, who works at nearby Collingtree Lighting, told the Northampton Chronicle he heard "little explosions".
He said: "Within 10 minutes the whole building was on fire, and then it spead to a nearby building.
"When the fire brigade arrived they told everyone to evacuate and get back out onto the main street."
