A man is in hospital with serious injuries after he was airlifted to hospital following an explosion in Chepstow.
Gwent Police said the 38-year-old man's injuries were described as serious but are not believed to be life-threatening.
Emergency services were called to Lower Church Street at around 6.30pm on Monday, September 21.
Some residents were evacuated as for their own safety as fire crews worked at the scene to put out a fire.
A spokeswoman for Gwent Police said that the explosion had caused significant damage to the premises and a cordon is still in place as a safety precaution.
She added: "A joint investigation with South Wales Fire and Rescue Service is ongoing.
"The community are thanked for their support and patience."
The cause is still being investigated today, but it is not thought to be related to the mains gas network.
Richie Jones, Wales & West Utilities gas emergency service manager for Chepstow, said: “We were called to reports of an explosion at a property in the Lower Church Street area of Chepstow on Monday evening and immediately sent a team of engineers to the scene.
“On arrival we found that the property had been damaged and emergency services were in control of the scene.
“We worked with the emergency services to make the area safe and have now left the area. It is not thought to be related to the mains gas network."
Anyone with any information, who has not yet spoken with officers, can call 101 quoting reference 2000346348 .
