Libyan leader Muammar Gaddafi appears on state TV
Libya's leader, Muammar Gaddafi, has dismissed reports that he had fled amid the unrest sweeping the country, calling foreign news channels "dogs".
Speaking to state TV from outside a ruined building, he asserted: "I am in Tripoli and not in Venezuela."UK Foreign Minister William Hague had said he had seen information suggesting Col Gaddafi was on his way to Caracas.
Witnesses say warplanes and helicopters fired on protesters in the city. To the west, sources said the army was fighting forces loyal to Col Gaddafi.
Earlier, the newly established General Committee for Defence said its forces would cleanse Libya of anti-government elements.
A statement described the protesters as "terrorist gangs made up mostly of misguided youths", who had been exploited and fed "hallucinogenic pills" by people following foreign agendas.
But Libya's diplomats at the United Nations in New York called for international intervention to stop the government's violent action against street demonstrations in their homeland.
Deputy Permanent Representative Ibrahim Dabbashi said Libyans had to be protected from "genocide", and urged the UN to impose a no-fly zone. Ali Aujali, Libya's most senior diplomat in the US, also criticised Col Gaddafi. He told the BBC he was "not supporting the government killing its people".
'Satisfied' Col Gaddafi appeared for less than a minute on state television shortly after 0200 local time (0000 GMT).
He was seated in the passenger seat of an old, white vehicle and held up an umbrella to shield himself from the rain while speaking.
"I am satisfied, because I was speaking in front of the youth in the Green Square tonight, but the rain came praise to God it bears well," he said. "I want to clarify for them that I am in Tripoli not in Venezuela. Do not believe these channels - they are dogs. Good-bye."
It has been raining in Tripoli for much of the past two days.
Speculation mounted throughout Monday that Col Gaddafi had been forced to flee Libya, especially when Mr Hague told reporters in Brussels that he had "seen information that suggests he is on his way" to Venezuela.
Libyan Deputy Foreign Minister Khaled Kayem did, however, tell state TV that the leader was still in the country "as are all government officials".