Ten Glasgow firefighters are facing disciplinary action for refusing to take part in a PR exercise at a gay pride march in the city.
Thousands of people attended the march in Glasgow
The men, who are based at Cowcaddens fire station, had been asked to distribute fire safety literature at the event last month.
They were reported by their superior officers for disobeying orders.
Unions and Strathclyde Fire and Rescue have both declined to comment until an internal investigation is completed.
The firefighters are said to have taken their stance on moral grounds.
Scottish National Party MSP Fergus Ewing said it was "unbelievable" that they were now facing disciplinary proceedings.
He said firefighters were entitled to their private views and questioned whether handing out leaflets at such an event had become one of their core duties.
March organisers said firefighters were public servants who could not be seen to discriminate.
Thousands of people from the lesbian, gay, bisexual and transgender community took part in the Pride Scotia Glasgow march on 24 June.