As investigations continue into what caused the Super Puma helicopter tragedy, one man has spoken of his brush with catastrophe.

Sixteen people lost their lives when the aircraft went down on Wednesday as it returned from a BP oil platform.

Oil worker Ian Morrison was supposed to be on the flight from the Miller field to Aberdeen but his plans changed just 15 minutes before take-off.

His company KCA Deutag telephoned asking him to stay on the platform to work an extra shift.

He told STV News: "I was approached by the rig office and asked if I wanted to stay on for another shift. So I thought 'okay, that's fine by me'."

His comments came as photographs of all but one of the men killed were released by police.

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Extended interview with Ian Morrison

When he learned the news, Mr Morrison joined colleagues in the installation's recreation room.

He added: "It's very hard not to show your emotions at a time like that.

"I didn't want to sit too long. I had to try to get my composure back."

Mr Morrison recalled his lost colleagues, who were not just workmates but also friends.

"There were ten KCA Deutag personnel and I basically worked with them all - every one of them. I even sat with two of the guys at the dinner table and had had a bit of craic. It was all jovial."

Mr Morrison flew home on Thursday night. He is receiving counselling to help him to cope with the loss of his colleagues.

He will also have to cope with the knowledge that he could so easily have been among them.

VICTIMS