The National Transitional Council (NTC) is still fighting to pry the town of Sirte from the remaining Moammar Gadhafi loyalists in the city.

The battle for Sirte has proved to be one of the longest and bloodiest of the revolution, but the NTC -- Libya's interim government -- is prepared to declare victory once the city is won.

Three members of the NTC said Wednesday that they had captured Gadhafi's son Mutassim trying to flee Sirte and taken him to Benghazi, according to CNN. Mutassim was thought to be commanding the pro-Gadhafi troops inside the surrounded city.

Despite the claim, which prompted anti-Gadhafi fighters and Libyans to celebrate in the streets, the NTC has yet to officially confirm the capture. According to The Tripoli Post, official word should come sometime on Thursday, once the Council is certain that Mustassim is in custody.

The NTC has reported in the past the captures of Moammar Gadhafi's sons Saif al-Islam Gadhafi and Saadi Gadhafi, both of which were revealed to be false.

The whereabouts of the elder Gadhafi, the former leader of Libya, are still unknown. He's likely to be still on the move, and somewhere in the desert surrounding Bani Walid, UK Foreign Secretary William Hague said Thursday.

Gadhafi's youngest and second youngest sons are both thought to have been killed during the Libyan revolution.

Saif al-Arab Gadhafi was killed in a NATO airstrike in April. He died while in the same building as his father and brother Saif al-Islam, who escaped unharmed. Saif al-Arab lived in Germany and wasn't involved with politics, although Gadhafi gave him a military position until when the revolution broke out. He was also somewhat infamous, and he was arrested in Germany for trying to smuggle an assault rifle to Paris in 2008.

Gadhafi's youngest son Khamis may also be dead. In August, rebels claimed, for the third time, that they had killed Khamis. But, after the two previous occasions when the NTC said that Khamis was dead he appeared on state television shortly thereafter. However, Khamis hasn't been seen since the August report, and the NTC said in September that he was confirmed dead and that rebels had seen his grave near Bani Walid.

Khamis received military training in Russia and Libya, and during the current conflict he was the leader of the 32nd Reinforced Brigade of the Armed People. Also known as the Khamis Brigade, the 32nd is the best trained and best equipped special forces unit in the Libyan Army.

The war in Libya has also illuminated facts about Gadhafi's mysterious daughter Hana, who he claimed died in the 1986 airstrikes on Tripoli. Rebels are now convinced that Hana didn't die, and had been working as a surgeon in Tripoli before the civil war began in February.