Scotland For Marriage, the campaign against same-sex marriage, have come under strong criticism for wrongly including the names of equal marriage supporters on an online petition that opposes equality.

Lothians MSP Kezia Dugdale has written to Nicola Sturgeon asking that the petition be discounted after having been contacted by "furious" constituents raising their concerns that their names had been wrongly added.

Both the police and the Information Commissioner have been informed of the incident.