Bereaved families and survivors have gathered for a memorial service on the 20th anniversary of the Piper Alpha tragedy.
On July 6, 1988, 167 people lost their lives after a gas leak on the North Sea platform ignited, engulfing Piper Alpha in a massive fireball.
Survivors, relatives of those who died, industry representatives and local people have been invited to the Kirk of St Nicholas Uniting in Aberdeen for the service.
It is being led by the Rev Andrew Jolly, chaplain to the UK oil and gas industry.
Scotland's First Minister Alex Salmond, The Duke of Gloucester and Scotland Office Minister David Cairns are also expected to attend.
The church, which holds 1,100, contains a chapel known as the Oil Chapel which holds the Book of Remembrance that records the names of all those who perished in the Piper Alpha disaster.
The names of those who died will be read out in the service.
Later there will be an Act of Remembrance at the Piper Alpha memorial statue in Hazlehead Park.
There were only 62 survivors in what remains the world's worst offshore disaster.
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Always remember to forget the troubles that pass your way; BUT NEVER forget the blessings that come each day.