Britain stood still for a minute’s silence to remember the holidaymakers shot dead by a terrorist while they sunbathed on a Tunisian beach last week.
The Queen, who was at the University of Strathclyde in Glasgow, and Prime Minister David Cameron, who was in his constituency in Oxfordshire, joined millions of people across Britain as Big Ben chimed midday.
A group of tourists in the resort of Sousse gathered around a shrine of flowers on the beach where 38 people were massacred, 30 of them British reports Sky News.
Standing yards from the rows of sunbeds on which people died, they were protected by soldiers and police armed with automatic weapons.
Back in Britain, sporting events at Wimbledon and the Henley Regatta were delayed to allow fans, competitors and match officials to pay their respects. At Essex County Ground in Chelmsford the touring Australian Ashes cricket team joined Essex players and officials bowing their heads during a break in play.