Police will stay at the bridge until Mr Stanesby comes down

Jolly Stanesby, 35, a registered childminder from Ivybridge in Devon and member of the pressure group Fathers 4 Justice, climbed onto the gantry over the Tamar Bridge at Plymouth on Friday morning.

The start of the protest caused chaos to commuter traffic and the bridge was closed for 90 minutes.

Mr Stanesby was joined by three other protesters at the beginning of the demonstration, who were later arrested.

The first woman to take part in one of the protests, mother-of-one Jayne Woodman, 36, a human resources manager from Swansea, south Wales, was released without charge.

A 38-year-old man and a 46-year-old man, both from London, were released on police bail to return at a later date.

The demonstration on the bridge has prompted a review of security measures by its management team.

Mr Stanesby also demonstrated at the Royal Courts of Justice in London in October.