Police are investigating claims demonstrators displayed the flag of a proscribed terrorist organisation alongside neo-Nazi paraphernalia in Edinburgh.

Videos circulating on social media show a group of men holding up a flag bearing the name of the Ulster Defence Association (UDA) during a protest on Princes Street on Saturday.

Images also show some of the men carrying a banner bearing the logo of Combat 18, the neo-Nazi group, and the far-right organisations Patriotic Alternative and the Scottish Defence League.

A Police Scotland spokesperson said it was "aware" of the images and videos posted online, adding inquiries were ongoing.

The UDA is a loyalist paramilitary group which was active in Northern Ireland during the Troubles. It claimed responsibility for the killings of hundreds of people during the conflict.

It was proscribed as a terrorist organisation in 1992.

That means it is a criminal offence to belong to, invite support for or "express an opinion or belief that is supportive" of it.

It is also an offence to "wear clothing or carry or display articles in public" which suggest a person is a supporter of the organisation, or publish an image of a flag or logo related to the group.

The UK government has published a full list of proscribed organisations online.