Musicians who performed at Live Aid, the transatlantic concert that raised millions for famine relief in Ethiopia, reunited in London on Sunday to mark the event's 40th anniversary, attending a special performance of the musical "Just For One Day".

Bob Geldof has said Live Aid still resonates today, 40 years on from the two-venue benefit concert which brought together a stellar cast of celebrity musicians.

The National Library of Ireland has now digitised 2,000 photographs and made them available to the public to view online to mark the 40th anniversary of the day. Most are in black-and-white, which was still the most-used form in newspapers at the time. However, a selection are in colour.