Libyan rebels are facing resistance from troops loyal to Gaddafi as the battle for Tripoli continues.
There has been repeated gunfire and explosions today as troops loyal to Gaddafi stage a fightback.
While the West issued confident noises overnight Sunday and Monday, the fighting continued on Tuesday.
The wherabouts of the Libyan leader remains unclear as NATO said scud missiles had been fired by loyalist fighters in Misrata on Monday.
NATO said while there was no reported casualties or damage as a result of the scud missiles, they were a weapon of terror.
The opposition's image was also dented when its claims that Gaddafi's son Seif al-Islam had been arrested were refuted by none other than the man himself, who appeared before cheering armed loyalists outside Bab al-Azizya in the early hours of Tuesday.
"There are still clashes in Tripoli, the situation is very fluid," Lungescu added.
"The pro-Gaddafi forces have been substantially degraded, but they still pose a danger."
UN Security Council Resolution 1973 authorised NATO in March to defend Libya's civilian population from attacks by Gaddafi's regime, which faces a popular revolt after 42 years in power.
The International Criminal Court (ICC) "never" had confirmation of the arrest of Seif al-Islam, one of Libyan leader Moamer Kadhafi's sons said to have been captured by the rebels, a spokesman said Tuesday.
"After yesterday's announcement, we communicated with the National Transitional Council to have confirmation of the arrest, but we never received it from the NTC," the ICC's spokesman Fadi el-Abdallah said -- after Seif al-Islam spoke to journalists to refute the "lies" about his capture.
The chairman of the NTC Mustafa Abdel Jalil told Al-Jazeera television overnight he had "information that Seif al-Islam has been captured".
"He is being kept in a secure place under close guard until he is handed over to the judiciary," Abdel Jalil said, without giving a date or place for his reported capture.
The ICC prosecutor in the Hague Luis Moreno-Ocampo told AFP later "I have received confidential information stating he has been arrested."
But in a dramatic twist, Seif el-Islam appeared in person to journalists in a vacant lot outside his father's Bab al-Azizya compound in Tripoli in the very early hours of Tuesday to demonstrate that he had not been taken and proclaim that the capital remained under the regime's control.
Before the revolt which erupted in February, he was increasingly seen as the successor to his father, despite publicly ruling out any dynastic ambitions in the North African country.
He long served as the face of the regime in the West as he appeared in suits and ties and spoke fluent English.
Along with his father, he is wanted by the ICC for crimes against humanity.
