Mr Davies drove to London on Monday

The Sun newspaper published more photographs on Wednesday which, they claim, were taken at a woodland at Tog Hill near Bath where sexual activity took place.

The Welsh Assembly member for Caerphilly has denied all the allegations.

In an article in The Sun on Tuesday, a man identified only as a 48-year-old builder called John told the paper that Mr Davies engaged in a sexual act in woodlands near Bath on Monday morning.

But Mr Davies - who remarried last year and recently became a father for the second time - has claimed that he was 50 miles away, travelling to London at the time of the alleged incident.

The Sun insists it stands by its story and the 57-year-old politician continues with his claim that he has proof he was not at the spot in question at the time.

Mr Davies says he was 50 miles away

That comes in the form of a Visa receipt for petrol from a motorway service station on the M4 in Berkshire.

Mr Davies described the newspaper stories as "very unpleasant and very distressing".

"I don't know why the tabloid newspapers seem to take so much pleasure in recounting all these lurid tales."

He said he had not considered giving up his political career, and suggested that legal action might follow The Sun's story.

"I have not thought of resigning - why should I?", he asked BBC Wales' political editor David Williams.

Mr Davies had been quick to respond to the accusations earlier in the day.

"There is no substance in this whatsover," he told Radio Wales.

Proof

"The first I heard about it was yesterday afternoon. I had a phone call late afternoon to put to me that I had been involved in a confrontation of a photographer in Bath."

Denying he was in Bath at any stage on Monday, Mr Davies added: "I left my home in Caerphilly at 0930GMT yesterday morning. I have a receipt showing that I bought �30 worth of petrol from a service station in Berkshire.

"Then by 1145GMT I was booked into a secure car park by security in central London.

Ron Davies hit the headlines back ni 1998

"To do the journey in two-and-a-quarter hours was pretty good. Apart from getting petrol, I didn't stop until I got to London."

This is not the first time Ron Davies has found himself the subject of unwelcome tabloid headlines.

In 1998, he resigned from his post as secretary of state for Wales following a "moment of madness" on Clapham Common.

The phrase has become synonymous with events leading to his resignation. Mr Davies said he met a stranger as he strolled in south London and accepted a dinner invitation.

He said he agreed to go for a meal when he was robbed at knifepoint. A man was arrested and charged with robbery but the charge was later dropped.

Having been dubbed the "architect of Welsh devolution", he stood down as Welsh secretary the following day.

Mr Davies later announced he was bisexual and had had psychiatric treatment for a compulsive disorder which attracted him to high-risk situations.

In this latest furore, a newspaper photographer said he caught Mr Davies and the builder at the Tog Hill picnic area - eight miles north of Bath - following a tip-off.

With regard to the picture published alongside the report on Tuesday, Mr Davies said the photographs published in the paper could have been taken in woodlands close to where he walks his dogs every day.