Dublin riots: Immigration's complicated role in growing Ireland's far right

The Republic of Ireland's police chief has blamed rioting in Dublin city centre on Thursday on a "lunatic, hooligan faction driven by a far-right ideology".

Disorder broke out hours after three children and a school care assistant were stabbed outside a nearby primary school.

Ireland prides itself on its hospitality and the céad míle fáilte - a hundred thousand welcomes - so what is driving this far-right movement?

While the answer to that is complicated, the best place to start is almost two centuries ago when people started to leave Ireland, with hopes of better opportunities elsewhere.

Migration has featured prominently in the story of Ireland.

People have left the island in their millions; the majority fleeing poverty and famine, others for their own reasons.

The Irish were among the "huddled masses" who glimpsed the Statue of Liberty on their way to Ellis Island in New York and the start of a new American life.

They also emigrated to other countries in huge numbers, particularly Great Britain and Australia.

Emigration was, until relatively recently, just a fact of Irish life.

But in the last 20 years or so, that has changed massively, beginning with EU enlargement and more recently immigration from India, Brazil, the Philippines, Nigeria and other countries around the world.