"Terrorism is an evil that opposes human values and principles. Lebanon, which was the victim of violence for many years, shares the sufferings of the British people," Lahoud said in a statement.
Lahoud urged the international community to double its efforts to ensure global peace based on respect of the peoples' right to secure and safe living.
In the United Arab Emirates, Deputy Prime Minister Sheik Hamdan bin Zayed al-Nahyan said, "the UAE condemns strongly such ugly crimes and declares its full solidarity with the British government."
Yemeni Foreign Minister Abu Baker al-Kurbi stressed that the "Yemeni government and people denounce such acts which target innocent civilians."
"The Yemeni people express full solidarity with the British people and the government approves any measures to be taken by our British friends in squashing terrorism," he added.
Notable deaths of 2014 [PHOTOS]