A husband accused of carrying out an armed robbery on the man his wife had an affair with has walked free from court.

Marc Boyle, 34, was charged with attacking Alan Greenfield after apparently learning of his fling with spouse Tracy.

Jurors heard how Mr Greenfield was bound, gagged and threatened with a gun during the raid that also saw his pensioner mum tied up at their home in Renfrew, Renfrewshire.

Mr Boyle, his wife and her lover all worked at Glasgow's Queen Elizabeth University Hospital.

Tracy, an auxiliary nurse, and Mr Greenfield, a maintenance assistant, started an affair after she got married to Boyle in 2013.

It was claimed Boyle, a porter, later found out where Mr Greenfield lived and pounced with a mystery accomplice in October 2016.

Boyle denied the crime - insisting he did not even know at the time that his wife was having an affair.

On Monday he was acquitted at the High Court in Glasgow after jurors returned not proven verdicts.

Boyle had been charged with abducting, assaulting and robbing Alan.

He was also accused of abducting and assaulting Alan's 68 year-old mum Margaret Greenfield as well as a firearms allegation.

Boyle, now of the city's Thornliebank, looked on the verge of tears as he left the dock.

Jurors heard how Boyle got married to his wife in August 2013.

He told the trial that he "loved her to bits".

But Tracy went on to have an affair with the fellow hospital worker.

Boyle said he was "distraught" when he left the family home in April 2016 after their relationship broke down.

The court heard claims Boyle later asked a friend of his wife about someone called "Alan" and where he stayed.

The dad denied this instead telling jurors: "I asked (the friend) if she could help us get back together."

His lawyer Joe Barr put to Boyle: "Did you know who Alan was?"

Boyle: "As far as I was aware, he was someone from work."

Mr Barr: "Did you suspect Alan was having an affair with Tracy?"

He replied: "No."

Prosecutors had alleged Boyle was guilty of the crimes pointing to a number of factors including his DNA said to have been found in Alan's home.

The trial was told Boyle lost his porter job as a result of being charged.