Memorial services are being held in Scotland and the United States Friday to remember the 270 people killed when a Pan Am passenger plane exploded over the town of Lockerbie 30 years ago.
It was the biggest mass murder on British soil in recent history.
Thirty years ago, a bomb exploded on Pan Am 103, 30 minutes after take-off on route from London to New York.
Destroying the plane, killing all 259 people on board, as well as 11 others on the ground.
Friday morning, services are being held in the town of Lockerbie in Scotland. And in the United States, Syracuse University, Arlington National Cemetery and the FBI headquarters in Washington, D.C. All to remember the victims of the Lockerbie bombing, most of whom were American.
Here in the United Kingdom, wreaths will be laid at the Memorial Garden by relatives of the victims, along with members of the community who assisted in the aftermath.
However, for a lot of the people affected by the tragedy, time has not brought closure.
The only person ever to be convicted of the bombing, Abdel Baset Al-Megrahi, died in 2012 after being released from a British jail on compassionate grounds.
Many of the bereaved families continue to campaign for a full inquiry into the disaster, which they say is being denied by successive British prime ministers.