Representatives of some of those killed in the Lockerbie bombing are challenging the conviction of the man found guilty of blowing up the flight.
Libyan Abdelbaset al-Megrahi was convicted of causing the deaths of the 270 people killed in the attack on Pan-Am Flight 107, which happened in 1988.
But some of the families believe he was innocent, and have been at the High Court in Edinburgh to pursue an appeal against his conviction.
Al-Megrahi died three years ago and the court is being asked to decide if legal proceedings could continue without his family's involvement.
Campaigners who believe the Lockerbie bomber Abdelbaset Al Megrahi didn't get a fair trial have met the man in charge of the investigation.
Members of the Justice for Megrahi campaign want to reopen the inquiry into Megrahi's conviction.
They think that many aspects of the orginal investigation were mishandled and want the former chief constable of Dumfries and Galloway Police Pat Shearer to look into their allegations.
Matthew Taylor has this report:
Campaigners who believe the Lockerbie bomber Al Megrahi didn't get a fair trial are to meet with the man in charge of the investigation.
Former chief constable of Dumfries and Galloway Police Pat Shearer will speak to members of the Justice for Megrahi campaign in Dumfries today.
Scotland's First Minister, Alex Salmond has given this reaction to the death of Abdelbaset al-Megrahi.
The father of one of the victims of the Lockerbie bombing says he is 95% convinced that Abdelbaset al-Megrahi was not responsible.
He added that an "enormous red herring' has been removed, and now he can press for an independent inquiry into why the bombing was allowed to happen.
Former Lockerbie councillor Marjory McQueen was an eyewitness on the night on the bombing.
She says she thinks no one will ever know the truth surrounding exactly who was responsible for the deaths of 270 people on 21 December 1988.
Abdelbaset al-Megrahi's sister has told the Libyan Wal news agency that his funeral will take place at Tripoli's main cemetery on Monday, following early afternoon prayers
The Leader of the Scottish Liberal Democrats has commented following reports that al-Megrahi has died at home in Libya, after a long battle with cancer.
Abdelbaset al-Megrahi, 59, was sentenced to life in prison for the 1988 bombing of a US airliner which claimed 270 lives.
The Leader of the Scottish Labour Party has apologised to the victims of the Lockerbie bombing for al-Megrahi's early release from prison. He was speaking following reports that Abdelbaset al-Megrahi has died at his home in Libya.
The only man convicted of the Lockerbie bombing has reportedly died.
Abdelbaset al-Megrahi was found guilty of the 1998 bombing of Pam Am 103 over Scotland, which killed 270 people.
He was convicted in 2001, before being released on compassionate grounds in 2009, suffering from terminal prostate cancer. At the time he was given only three months to live.
Al-Megrahi's brother has reportedly confirmed his death to news agencies.
More to follow...