Industrial estate near Norwich sealed off after blast
Emergency crews remain at an industrial estate near Norwich after an explosion destroyed a cafe and damaged nearby buildings on Wednesday night.
The blast at about 2115 GMT at Rackheath industrial estate was heard several miles away.
The estate has been sealed off and will not reopen until all buildings have been checked. No-one was injured.
Structural engineers and fire service experts are to start an investigation into the blast.
Residents three miles away in Blofield reported hearing the blast.
Debris has covered much of the area and the whole industrial estate.
Cause not known
A structural engineer checked some of the surrounding buildings and seven are thought to have suffered structural damage.
Anglia Buses have had to suspend services because their depot on the estate cannot be reached.
About 30 people were working on the estate when the explosion happened.
Phil Berry, from Norfolk Fire Service, said although the cause of the blast was not yet known, gas cylinders may be to blame.