Dyfed-Powys Police says it is using a "four-step process" as it seeks to stop people taking unnecessary journeys.

Concerns have been raised elsewhere in the country about forces' excessive use of new powers to clamp down on people who are out and about.

Guidance sent out to forces said communities must receive a "consistent" level of service from officers along with a "single style and tone".

The document from the National Police Chiefs' Council (NPCC) and the College of Policing was issued to the 43 police forces in England and Wales last week, but has not yet been made public.

A spokesman for Dyfed-Powys Police said: “Dyfed-Powys Police aims to encourage and support our communities to comply fully with these restrictions.

"We will follow the four-step escalation principle of engage, explain, encourage and enforce to ensure the public are complying with the guidance and advice.

"The vast majority of people are fully complying however for the small number who aren't we will use enforcement.”

Tweets from officers on patrol over the last few days have highlighted the number of people continuing to travel into the area to visit, with one family from Bristol prevented from climbing Pen y Fan and a campervan registered in Scotland also turned away.

NPCC chairman Martin Hewitt said forces need to show consistency in encouraging people to follow the coronavirus restrictions.

He said: "Of course, we are trying to achieve that consistency and that's the work I am doing at the centre through the operation that we are running to try to coordinate policing across all the forces of the UK that are all dealing with these issues in their own context.

"So, we will constantly be striving to achieve that level of consistency and we will be looking at the way the issues are being dealt with and the good practice as well as things we think maybe we wouldn't want to do in that way.

"But we are going to have to learn as we go along because this is very challenging, the measures are unprecedented for anybody to be dealing with, both for the public and the police."