Isles MP Angus Brendan MacNeil has hit back at allegations he misused parliamentary expenses to pay for a hotel during an affair with Serena Cowdy, a political journalist at Westminster.

Scottish Conservatives Deputy Leader Jackson Carlaw has written to the Parliamentary Standards Commissioner Kathryn Hudson, alleging Mr MacNeil had breached an MP’s Code of Conduct. 

Mr Carlaw said: “The SNP says there is no financial impropriety - but at the same time it is widely reported that Angus MacNeil stayed with Ms Cowdy at a hotel in London and put the bill on expenses. 

“The best course of action is for the UK Parliament's standards commissioner to look into the matter, which is why we are writing to the commissioner this morning calling for an investigation.”

In a statement, Angus MacNeil said that his accommodation in London was claimed under normal expenses, as was the case for all MPs, and the cost of this was compliant with the rules of the Independent Parliamentary Standards Authority (IPSA).

The Western Isles MP has been the subject of lurid tabloid headlines in the last two days.

He is alleged to have had an affair with Serena Cowdy, who then went on to have an affair with SNP Deputy Leader Stewart Hosie. 

Mr Hosie announced his separation from wife Shona Robison MSP at the weekend.

The tabloids alleged that Mr MacNeil’s affair with Serena Cowdy was responsible for the breakdown of the Isles MP's marriage to wife Jane last year.

“I don’t like to comment on my personal life or related tabloid stories, but my marriage sadly ended for very different reasons to what has been suggested in lurid newspaper stories this week,” said Mr MacNeil.

“For the record, as if I even need to say, I have never had so much as a crossed word with my colleague Stewart Hosie MP.

“A journalist from a broadsheet told me to weather the tabloid storm best I can, but frankly it feels like an awful personal invasion where tabloids treat you like a commodity disregarding effects on children especially.

“However, there are many people in worse situations than me and I have many things to be grateful for.  On the plus side at times like this you see the decency of normal, sensible people. 

“I am very thankful for the support I have received in the constituency, wider Scotland and at Westminster including MPs from across the political spectrum.

“It has been a challenging week in which I am continuing to do my job and keep appointments as planned.”