WARNINGS have been issued about a potential 'go-slow' protest taking place on UK's motorways.

Police have said pro-Brexit campaigners who are organising convoys of slow-moving vehicles on roadways including the M6 and the M62, could face prosecution.

The protests have reportedly been planned for around 6.30pm tonight during rush hour.

The demonstrations are being organised by several independent Brexit groups who are threatening to disrupt traffic if Brexit is delayed.

According to the Brexit Protest and Direct Action Group UK Facebook page, a go-slow has been planned to start in Lancaster and Morecambe and travel south towards Preston.

A statement in the group said: "Tractors, in a loop from Caton Road, Morecambe Road, Bay Gateway, all other vehicles, in a loop from junction 34 to 35.

"Stop the betrayal and restore democracy, leave means leave.

"Have you got a tractor, lorry, pick up, trailer?

"Just a small amount of co-ordination and we can show just what an impact we can have.

"Get in touch. To maximise our impact we need some co-ordination.

"Organise yourselves into groups of a minimum of three vehicles and we will arrange where everyone should join the route."

The RAC advises that while most motorways in the UK do not have an official minimum speed limit "travelling too slowly can be considered dangerous" and might attract attention from police.

Through a statement issued by the Brexit Direct Action Twitter account, a group spokesman said: "We believe that our government should fulfill their manifesto and EU referendum pledge to exit the EU on March 29 with either an acceptable withdrawal agreement or a World Trade Organisation managed exit.

"We are helping to co-ordinate various protest movements such as 'march to leave' - multiple hauliers in organised go-slows, petitions to local political party associations and publicity.

A police spokesman said those taking part in any protest - on a high speed road - should be aware that if the manner of their driving endangers other road users then they are liable to be prosecuted.

A Highways England spokesman said: "Our focus is on providing a safe, reliable network for the millions of drivers who use our motorways and major A-roads every day."