Scotland's top prosecutor met with the interim Libyan Prime Minister on Wednesday to discuss the continuing investigation into the Lockerbie bombing.
Lord Advocate Frank Mulholland attended a meeting with Abdurrahim El-Keib in London along with the Chief Constable of Dumfries and Galloway Constabulary Patrick Shearer.
The meeting comes four days after Abdelbaset Ali al-Megrahi, the only person convicted of the Lockerbie bombing, died in Libya.
Speaking after today's meeting, a Crown Office spokesman said that the purpose of Wednesday's meeting was "to discuss and reaffirm the commitment he gave to the Lord Advocate and the director of FBI in April that the new Libyan Government would co-operate with Scottish and US law enforcement in the investigation of others with Megrahi in the Lockerbie bombing."
Mr Mulholland and Robert Mueller, director of the FBI, met Mr el-Keib in Tripoli in April to discuss the inquiry into the bombing.
Lord Advocate Frank Mulholland, Scotland's top prosecutor
The statement continued: "The [Libyan] Prime Minister asked for clarification on a number of issues relating to the conduct of the proposed investigation in Libya and the Lord Advocate has undertaken to provide this.
"The Prime Minister made it clear that he recognised the seriousness of this crime and following the clarification he would take this forward as a priority.
"As the investigation remains live, and in order to preserve the integrity of that investigation, it would not be appropriate to offer further comment."
Former Libyan intelligence officer Megrahi was sentenced to life in prison for the 1988 bombing of a US airliner over the Dumfries and Galloway town which claimed 270 lives.
He was later diagnosed with terminal prostate cancer and controversially released from prison in August 2009, with an estimated three months to live, on compassionate grounds.
But Megrahi, who always proclaimed his innocence, proved medical experts wrong and finally lost his cancer battle in Tripoli on Sunday at the age of 60, his son said.