North Pickenham warehouse fire 'seen for miles'
A "major" warehouse blaze in Norfolk created three explosions and plumes of smoke that could be seen more than 20 miles away.
The fire broke out at the 45,000 sq ft unit, owned by family hauliers E and S J Walpole Ltd, in North Pickenham, about 11:00 GMT.
The blaze caused "major structural collapse" but "everybody got out of the building", the fire service said.
Crew are expected to remain on site well into the night.
Due to high levels of smoke people living in the area off South Pickenham Road are being advised to keep windows closed and stay indoors.
Nigel Williams, Norfolk's chief fire officer, said: "When we arrived it was a major fire that was progressing through the building.
"We do know some fork lift trucks that are powered by propane cylinders were involved in the fire... and as the fire progressed the cylinders have ruptured.
"We heard three quite loud explosions, but they've been contained within the building."
A BBC cameraman said plumes of smoke from the blaze could be seen more than 20 miles away.
A fire service spokesman declined to comment if firefighters at the scene had been involved in strike action.
The Fire Brigades Union started their strike at 18:00 on Friday in a dispute over changes to the national pension scheme.
The industrial action will continue until 18:00 on Tuesday.