Today's statement from the British, US and Libyan governments follows an interview ITV News did earlier this week with the justice minister from Libya, in which he said he was now willing to cooperate with police in the US and UK.
The Foreign Office has now welcomed that development and said that it looks forward to visiting Libya in the new year and to getting access to information and witnesses to progress their investigation.
Scotland's Lord Advocate has previously said there are still people out there with blood on their hands for this atrocity.
More top news
Investigators have released images of two more people they wish to speak to about the Hillsborough tragedy.
The number of reported anti-semitic incidents in the UK have increased by just over 50%, figures released by a charity have suggested.
Athletes competing at next years Summer Olympic Games in Rio de Janeiro will be using waters contaminated with human feces, a study finds.