A British Sunday newspaper reported that the army would be deployed at British oil, gas and electricity facilities to defend them from possible terrorist attacks.
The News of the World cited an unnamed security source as confirming security will be increased around the facilities after intelligence suggested terrorists may target the country's infrastructure.
Britain's Home Office, which oversees counterterrorism efforts, would not confirm the report, but said in a statement that it was reviewing security around key infrastructure facilities.
"We have been very clear that we face a severe threat of terrorism," the statement said. "It is therefore important that we consider all options for protecting our assets and infrastructure."
"This particular review does not come from any specific threat and the general threat level to the country has not changed," the statement continued.