A minute of silence has been held in memory of the victims of the 2005 London bombings.
The British Prime Minister, David Cameron, and the Mayor of London, Boris Johnson, have laid floral tributes to mark the 10th anniversary of the terrorist attacks, which killed 56 people.
Also gathered were relatives of the victims and survivors.
The commemorations come as Britain still reels from an attack in Tunisia last month, which resulted in Britain’s worst loss of life in a militant assault since the London attacks.
“Today the country comes together to remember the victims of one of the deadliest terrorist atrocities on mainland Britain,” Cameron said in a statement.
“Ten years on from the 7/7 London attacks, the threat from terrorism continues to be as real as it is deadly. The murder of 30 innocent Britons whilst holidaying in Tunisia is a brutal reminder of that fact. But we will never be cowed by terrorism.”
One of the 2005 victims being remembered is Miriam Hyman. Her sister, Esther, told reporters: “I thought, well, my goodness, if there are explosions on the Underground and then on a bus, who knows where it’s going to end.
“But of course I didn’t realise at that time that my sister was actually on that bus.”
Esther Hyman says she is worried that people are forgetting what happened.
“The events of 7/7 do seem to have slipped out of public consciousness,” she said. “It’s worth remembering an event like 7/7 and learning lessons from it so that it didn’t happen in vain.”
Hyman has launched an educational programme to help teach school pupils about the attacks and to steer them away from violent extremism.
On July the 7th, 10 years ago, homemade bombs were set off on a bus and three underground trains.
Four young British Muslims were later identified as the bombers.
Get a different perspective
Every story can be told in many ways: see the perspectives from Euronews journalists in our other language teams.