The Lockerbie bombing was ordered by Iran in retaliation for a US strike on an Iranian passenger plane, a new documentary has claimed.
Libyan Abdelbaset al-Megrahi was convicted of the bombing of Pan Am flight 103 over Scotland in which 270 people were killed more than 25 years ago.
But former Iranian intelligence officer Abolghassem Mesbahi has told an Al Jazeera documentary that the bombing was ordered by Tehran. He says it was carried out by the Syrian-based Popular Front for the Liberation of Palestine-General Command.
It's claimed it was in retaliation for a US navy strike on an Iranian commercial jet six months earlier, in which 290 people died.The US ship apparently mistook the plane for an F-14 fighter jet.
"Iran decided to retaliate as soon as possible. The decision was made by the whole system in Iran and confirmed by Ayatollah Khomeini.
The target of the Iranian decision makers was to copy exactly what's happened to the Iranian Airbus. Everything exactly same, minimum 290 people dead. This was the target of the Iranian decision makers."
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Emma Jesson brings you Sunday night's forecast
Wet and windy spells, interspersed with drier interludes this week. Wintry showers and variable temperatures. Gales and a weather warning
Wetter in the west, cloudy but direr further east. Milder than of late, but blustery