Workers from gas company Cadent remain at the scene of an explosion in Wirral.
At around 5am on Wednesday, September 15, police and firefighters were called to Argyle Industrial Estate, Appin Road, following reports of a blast.
Once on scene they confirmed there had been an explosion in a unit approximately 50m by 10m in size.
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Cadent said it was too early to know what the cause of the explosion was.
A spokesperson told the ECHO that they remain on the scene to carry out routine inspections.
They stressed that while they are inspecting the area and a cordon remains in place around the affected unit, the rest of the industrial estate is back open.

In a previous statement, they said: "We were called to a report of an explosion at 05:53 (Wednesday, September 15) by the fire service.
"We are carrying out our usual safety checks in the area and assisting the fire service with their investigation.
"It is too early to know the cause of the explosion.
"We have checked our records and there have been no reports of a smell of gas to the national gas emergency service in this area of Tranmere recently.
"If you ever smell gas, act fast and report it immediately to the national gas emergency service 0800 111 999*."
Merseyside Fire and Rescue Service and Merseyside Police were called to the scene and closed of the area.
A structural engineer and Wirral Council were also in attendance.
A Merseyside Fire and Rescue Service spokesperson said: "Once inside crews found some damage inside the premises but no signs of fire.
"Utilities to the premises have been isolated."
Police confirmed that no injuries were reported following the explosion and enquires are ongoing to establish what happened.
They said: "Cadent are in attendance at the scene and have turned the gas supply off to make the area safe."
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