Prime Minister David Cameron said that Britain would judge Libyan leader Muammar Gaddafi by actions on the ground after Libya said that it was declaring a ceasefire to comply with a United Nations resolution.
"We will judge him by his actions not his words," Cameron told BBC TV.
"What is absolutely clear is the UN Security Council resolution said he must stop what he is doing, brutalising his people. If not, all necessary measures can follow to make him stop.
"That is what we agreed last night, that is what we are preparing for and we'll judge him by what he does."