100 years on, world remembers Titanic disaster
Events are taking place across the world to mark exactly 100 years since the Titanic struck an iceberg and sank, claiming more than 1,500 lives.
The anniversary has taken on an international character, with events commemorating the tragedy in Britain, Canada, Ireland and the United States.
A particularly poignant memorial is being held in Southampton, the Titanic's port of departure and the home town of about 500 of the victims.
In Belfast, the city where the ship was built, they are opening a memorial garden with names of those who perished in the disaster.
Many Britons can trace relatives who were on the ship or were otherwise touched by the tragedy.
But it was from the Canadian city of Halifax that ships were sent to retrieve the bodies, and 150 of the tragedy's 1,514 victims are buried there.
One century to the hour after the fatal encounter with an iceberg, more than 1,700 passengers on two cruise ships - the MS Balmoral from Southampton and the Azamara Journey from New York City - are meeting at the site where the Titanic went down to witness a partial re-enactment.
At the site, the ship's captain announced a collision and issued a distress call.
Passengers will throw wreaths into the sea at 2:20am (local time) about 800 kilometres south-east of Halifax, marking the time and place the ship sank.