Game of Thrones star Daniel Portman and television presenter Lorraine Kelly are to join Prince Charles in honouring those involved in the Battle of Loos on its centenary next weekend.

The First World War battle involved an estimated 30,000 Scots from all Scottish infantry regiments, around 7,000 of whom died.

Lorraine Kelly said she is honoured to take part in one event with a host of personalities and musicians such as actor Portman and the Royal Scottish National Orchestra on Friday at the Caird Hall, Dundee.

The battle began on September 25, 1915, and while it touched every corner of Scotland, such was the loss of local men, particularly from the Black Watch, that it became known as Dundee’s Darkest Day.

The Remembering Loos event involves poetry, readings, song and orchestral music said to create a "moving and atmospheric experience as a fitting commemoration of events a century ago".

Kelly said: "Loos had a particularly harrowing effect on Dundee and her people as so many good men were lost.

"I think it is really important that we are marking the occasion on such a scale and I'm looking forward sharing a memorable evening with everyone who can make it along."

Other personalities and groups will perform pieces representing and reflecting the conflict and its casualties.

Vocalists include Dundee’s Sheena Wellington, Robyn Stapleton, the 2014 winner of BBC Radio Scotland’s Young Traditional Musician of the Year competition, Scottish tenor and BBC Radio Scotland classical music presenter Jamie MacDougall and rising stars Dallahan.

Other musical contributions come from young soprano Jessica Leary and the Mackenzie Caledonian Pipe Band.

Presenters include Scottish author James Robertson and Portman, who plays Podrick Payne in Game of Thrones.

Their Royal Highnesses the Duke and Duchess of Rothesay and First Minister Nicola Sturgeon will attend commemorative events in Dundee on Saturday.

Over 1,000 people are expected to attend a service after a parade of around 250 from the current armed services and 300 veterans.

Bob Duncan, Lord Provost of Dundee, said: "The terrible losses, particularly among local Black Watch battalions, had a profound effect on the city."