Luke Macgregor / AFP - Getty Images
A woman wipes her eye during a service of remembrance to mark the 25th anniversary of the Lockerbie air disaster at Westminster Abbey in London on Dec. 21, 2013.
The governments of the United States, Britain and Libya on Saturday pledged to cooperate to bring to justice those responsible for the bombing of Pan Am Flight 103, exactly 25 years ago over Lockerbie, Scotland.
"We want all those responsible for this most brutal act of terrorism brought to justice, and to understand why it was committed," the three governments said in a joint statement to mark the anniversary of the downed flight, which killed 270 people.
"We are committed to cooperate fully in order to reveal the full facts of the case," the joint statement continued. "We will all provide full support to the investigation team to enable them to complete their enquiries successfully."
The three governments also expressed their deep condolences to the families of the victims.
Services to commemorate the attack were held in Britain and the United States. British Prime Minister David Cameron was among those paying tribute.
"Over the last quarter of a century much attention has been focused on the perpetrators of the atrocity," Cameron said, according to the BBC. "Today our thoughts turn to its victims and to those whose lives have been touched and changed by what happened at Lockerbie that night."
The Boeing 747 was less than an hour into its journey from London to New York when it exploded. All passengers and crew members were killed, and 11 others died on the ground when falling debris hit their homes in Lockerbie.
Roy Letkey / AFP - Getty Images file
A file picture taken in Lockerbie, Scotland, on Dec. 22, 1988, shows the wreckage of Pan Am flight 103 aircraft that exploded killing all people aboard.
Most of the victims of the explosion were Americans on their way home from Europe for Christmas.
Libyan Abdelbaset al-Megrahi was the only person convicted in the bombing. He was released from jail in 2009 on compassionate grounds after he was diagnosed with prostate cancer. He died last year in Libya.
In 2003, former Libyan leader Moammar Gadhafi accepted his country's responsibility for the bombing, paying compensation to the victims' families but denying he had ordered the attack.
After Gadhafi was violently deposed in 2011, two Libyan prosecutors were assigned to work with Scottish and American investigators to find all those responsible for the bombing.
That cooperation was emphasized in Saturday's joint statement, which added: "We are striving to further deepen our cooperation and welcome the visit by U.K. and U.S. investigators to Libya in the near future to discuss all aspects of that cooperation, including sharing of information and documents and access to witnesses."
Win Mcnamee / Getty Images
Family members search for the names of loved ones carved into the base of a cairn during a remembrance ceremony for those who died on Pan Am Flight 103 at Arlington National Cemetery, Dec. 21, 2013.
First published December 21 2013, 2:00 PM