LONDON: People around Britain paused in streets and workplaces, in churches and mosques, in railway stations and at the Wimbledon tennis tournament Friday to honor the victims of an Islamic extremist’s rampage at a Tunisian beach resort.

Flags were lowered to half-staff at Buckingham Palace and U.K. government buildings to remember those killed in Tunisia’s deadliest attack.

Thirty of the 38 dead were British tourists, the youngest a 19-year-old university student and the oldest an 80-year-old retired scientist.

Queen Elizabeth II and British Prime Minister David Cameron were among those who observed a minute’s silence at noon Friday, a week after the attack.

The profile picture on the prime minister’s Twitter account was changed to a sign reading “Remember Tunisia.”

Mourners paused also outside the stadium of Walsall Football Club in central England, where supporters have left flowers and team flags in honor of three fans – all members of the same family – who died.

Crowds held a moment of silence late Thursday in Tunisia’s capital. People from many religions joined as Muslims broke their Ramadan fast.

A ceremony was planned Friday at the Imperial Marhaba hotel in the Mediterranean resort town of Sousse, where the attack happened.

Britain has launched an investigation into the killings and the police said that they had so far taken 275 witness accounts and that more than 1,200 potential witnesses had returned to Britain.