Libyan Rebels Libyan officials are refuting rebel claims that Moammar Gadhafi is seeking refuge for his family, saying Friday that neither the leader nor his wife and children plan to leave the country. Libyan Deputy Foreign Minister Khaled Kaim told CNN that Gadhafi and his family are staying in the country, countering rebel reports that the governments of Egypt, Morocco, Tunisia and Algeria have been asked to accept the family.
U.S. and NATO officials also say they have no indication Gadhafi is making preparations to leave.
Abdel Monem al-Houni, a representative of the rebel Transitional Council in Cairo, told CNN he was informed about the request by the Arab governments who received it.
Kaim said the four governments could speak on their own behalf about the rebel claims.
The reports come as U.S. officials say the embattled leader may be making preparations for a last stand in Tripoli as a months-long NATO air campaign continues amid reports of rebel advances.
"We believe he could be planning for a last stand," one U.S. official said.
A second U.S. official confirmed a similar concern and said the Gadhafi plan could involve a final military offensive against civilians, launched from his last major strongholds around the Libyan capital.
The officials, who have knowledge of the situation on the ground, did not want to be named because of the sensitive intelligence matters.
In an address broadcast on Libyan state television Monday, Gadhafi urged supporters to take up arms and battle rebel forces.
"Move always forward to the challenge; pick up your weapons; go to the fight in order to liberate Libya inch by inch from the traitors and from NATO. Be prepared to fight if they hit the ground," Gadhafi said.
Both U.S. officials emphasized that if a final push by Gadhafi happens, the United States doesn't have a clear idea what form it could take.
However, State Department spokesman Mark Toner said Friday that U.S. officials in Benghazi have been working with the Libyan opposition "on exactly what it's going to look like post-Gadhafi."
"Impossible to say when he'll go, but it's clear that he will go," Toner told CNN's Brooke Baldwin.
Meanwhile Friday, opposition forces said a former Libyan prime minister has left Tripoli and joined with rebels in the country's western mountains.
Abdel Salam Jalloud "is in Zintan and he is a free man among the rebels," said Jumma Ibrahim, a spokesman for the Military Council of the Western Mountain Region, a rebel group.
Kaim declined to confirm or deny the report.
Jalloud was a member of the junta that staged a 1969 coup bringing Gaddafi to power, and was seen as the North African oil producer state's second in command before falling out of Gaddafi's favour in the 1990s.
Jalloud was among members of Gadhafi's inner-circle responsible for the 1969 coup that put Gadhafi into power.
Following his dispute with Gaddafi, he had retired from politics altogether and lived under virtual house arrest.
He reportedly was stripped of his passport and put under virtual house arrest, following a disagreement with Gaddafi.
The speculation over a Gadhafi "last stand" comes as his troops are battling rebel forces on a number of fronts, including in the west, where fighting has raged for days over the strategic city of Zawiya, about 30 miles west of Tripoli and a major supply route to the capital.
Fierce artillery fire could be heard around Zawiya on Friday. Rebels took a major oil refinery there, said Hobab Jomaa, a rebel fighter. They were in control of the western part of the city, but battles continued in the eastern part, he said.
Government spokesman Musa Ibrahim downplayed the movements Friday, saying rebel supply lines have been cut off from the coast and from the south, rendering them unable to advance.
"We have paid a heavy price, and we have nothing in front of us except the prize, and the prize is victory over those traitors who collaborated with the crusader enemy and transformed Libya into a bloodbath," Ibrahim said.
Meanwhile, a NATO airstrike destroyed the home of Abdullah al-Sanussi, the head of Libya's intelligence service and a brother-in-law of Gadhafi's, neighbors and Libyan government officials said Friday.
The strike also destroyed a school and medical store, neighbors and officials said. One person -- not al-Sanussi -- was killed, they said.
Rebels are claiming to have captured two strategic coastal cities as they close in on Tripoli.
They say they have seized Zlitan, 160km (100 miles) east of the capital, and Zawiya, about 30km west of Tripoli, following fierce battles on Friday.
Opposition forces also claimed to be in control of the town of Surman, 60km west of Tripoli, and Gharyan, 50km to the south.
The government denies the rebel claims, saying the army is in control in both cities, Reuters news agency reports.
The International Organization for Migration said Friday that it is working to evacuate a large number of foreign nationals from Tripoli and other western cities "who are increasingly vulnerable and now want to leave."
Organization for Migration announced plans to start evacuating "large numbers'' of Egyptians and other foreigners, including some journalists, from Tripoli in coming days.
NATO has stepped up bombings in Tripoli in recent days, while rebels have been seeking to sever supply lines from Tunisia to the west and to Gaddafi's hometown of Sirte in the east in a move to cut off the capital, prompt defections and spark an uprising inside Gaddafi's stronghold.