Warwickshire Police have “an established plan in place” if it becomes necessary to put military personnel in the county, they say.

Armed police have also appeared at Coventry’s main transport stations after Prime minister Theresa May increased the UK’s terror threat level to ‘critical’ last (Tuesday) night, which means military personnel will need to be deployed across key sites in the country.

Coventry railway station and Pool Meadow Bus Station are being patrolled with armed police. Police are carrying automatic weapons around the main entrance of the train station, with uniformed officers stationed at Broadgate and Pool Meadow.

Both stations are still operating as normal.

A tweet from British Transport Police said: “You’ll see partnership working with British Transport Police and West Midlands Police at Coventry Railway Station over the next few days including firearms officers.”

A statement from West Midlands Police said: “Last night the national security state was raised to critical. This means that not only does an attack remain highly likely but a further attack may be imminent.

“The prime minister also authorised support from the military alongside the police, known as Operation Temperer.”

“However at this stage there are no plans to deploy military officers in the West Midlands; therefore the public are unlikely to see military personnel on the streets.”

“Support from the military will instead free up armed officers from certain guarding duties to release officers across the UK to support the wider national response.”

“As soon as the prime minister made her announcement, we implemented our locally tailored plan, including keeping officers on duty.”

“We are flexing our resources and increasing our presence at key sites, such as transport and other crowded places and we continue to review key events and entertainment venues.”

“People will notice an increase in the number of armed officers at these and other locations. While this is a precautionary measure, these highly visible patrols will continue for as long as is needed.”

“You would expect us to do everything possible to prevent further attacks and keep you safe.”

“At the same time we need your help.”

“Please remain calm but alert. If you see anything that causes you concern, then let us know immediately, if you have suspicions about someone’s behaviour call us.”

“Look out for anything that seems out of place, unusual or doesn’t seem to fit in with day-to-day life,” the statement concluded.

“We have an established plan in place if it is necessary to manage the deployment of military personnel in Warwickshire and our security measures and activities are under constant review to reflect where the threats exist and the level of threat we are facing in the county,” Warwickshire Police Assistant Chief Constable, Martin Evans, said.