An SNP MP brandished a red card during Prime Minister's Questions in an attack on a Scottish Tory who is missing a crucial vote to officiate at a football match.

Douglas Ross will be unable to cast his vote after the Commons debate on universal credit as he will be in Spain running the line as an assistant referee when Barcelona take on Olympiakos at the Nou Camp.

SNP MP John McNally pulled the red card from his pocket at PMQs on Wednesday, asking Theresa May what message the absence would send to members of the public who were "expected to turn up to their day jobs or face sanctions".

The Prime Minister responded by defending Ross, who represents Moray, saying Scottish Tory MPs are doing more for Scottish interests at Westminster "than the Scottish Nationalists have ever done".

Labour are hoping to win a symbolic victory in an opposition day vote later on Wednesday, which will call for the roll-out of universal credit reforms to be paused.

The expansion of universal credit, merging six benefits into one, has been plagued by a number of issues.

Thousands of claimants have had to wait longer than the standard six weeks to receive payments, a period already criticised by charities as being too long.

Many have been plunged into debt and arrears as they wait to receive their funds.

Ross has been an MP since June, when he ousted the SNP's Westminster leader Angus Robertson to win the Moray seat.

It is not the first time he has missed parliamentary duties for his second job as an assistant referee, a role which earns him around thousands of pounds in addition to his salary as an MP.

Last year, while as an MSP before standing successfully for a Westminster seat, Ross missed a number of justice committee meetings and a vote on a motion concerning the SNP's council tax plans.

Ross last officiated a European club football match in August when he ran the line at the Europa League qualifying match between NK Domzale and Marseille.

Westminster's register of MPs' interests shows he was paid £1436.35 for the game.