Parts of Dawlish town centre have been evacuated following reports of a gas leak.
The Royal Mail Sorting Office in Brunswick Place has been evacuated and a 200 metre cordon put in place.
Emergency services - including police and the fire service - are at the scene, as well as Wales and West Utilities engineers.
Dozens of homes have also been evacuated, with residents being temporarily housed in Dawlish Leisure Centre.
Devon and Cornwall Police, on Twitter, said: “Emergency services are currently in attendance at the Royal Mail Sorting Office, Dawlish, following reports of a gas leak.
“A 200m cordon is currently in place and the area is being evacuated.
“Residents and anyone in the area of Brunswick Place and Plantation Terrace are asked to evacuate the area at this time. Updates as we have them.”
Teignbridge District Council, in a statement, described the gas leak as a “live incident” and said it was too soon to provide residents with a timescale of when they might be able to return home.
“We have been advised of a gas leak in the area around Brunswick Place around the sorting office,” the council said.
“The police are leading on the incident and there is a 150m cordon in place.
“The Dawlish Leisure Centre has been set up as an evacuation point for affected residents.
“This is a live incident and there is no timescale for how long the cordon will be in place.
“Dawlish Town Council have also opened the Riverside Centre for teas and coffees. We will be keeping people updated.”