David Cameron has said he is "proud" of the role Britain played in the downfall of Colonel Gaddafi as he delivered a statement following the death of the dictator on Thursday.
The prime minister called to remember those who had suffered under his regime.
"Prime Minister Jibril has confirmed that Colonel Gaddafi is dead. I think today is a day to remember all of Colonel Gaddafi's victims, from those who died in connection with the Pan Am flight over Lockerbie, to Yvonne Fletcher in a London street, and obviously all the victims of IRA terrorism who died through their use of Libyan Semtex. We should also remember the many, many Libyans who died at the hands of this brutal dictator and his regime.
"People in Libya today have an even greater chance after this news of building themselves a strong and democratic future. I'm proud of the role that Britain has played in helping them to bring that about and I pay tribute to the bravery of the Libyans who've helped to liberate their country. We will help them, we will work with them, and that is what I want to say today."
Labour leader Ed Miliband also said Gaddafi's death marked the end of a period of "brutality and repression".
"I pay tribute to the Libyan people for standing up to the former regime and seeking to define their own democratic destiny. We should be proud of the support that our armed forces have given to that cause.
"We should all hope that this day also marks the end of the armed conflict and the start of a period of stability where we see a transition to democratic government.
"Britain should stand ready to continue to help the National Transitional Council as it seeks to improve economic and social conditions, ensure order and prepare for elections," he said in a statement released on Thursday.