A secret burial is set for Friday for former Libyan leader Moammar Gadhafi, a day after he was killed as provisional government fighters stormed his hometown of Sirte.

Meanwhile, Libyans continued celebrating his demise early Friday. Jubilant crowds have filled streets across the country. Some Libyans fired celebratory shots into the air and waved the new national flag.

There are conflicting accounts about how Gadhafi died.

Interim Prime Minister Mahmoud Jibril said the former leader was pulled from a hiding place in a sewage pipe in Sirte and later mortally wounded in crossfire between pro- and anti-Gadhafi fighters.

Other officials said he was beaten and then killed.

Cellphone video from the scene has shown National Transitional Council fighters carrying a wounded and bleeding Gadhafi shortly before he died. Later images showed him apparently dead.

NTC officials say the interim government will formally announce Libya's liberation from Gadhafi's rule on Saturday and begin talks on a government transition.

The provisional government received help from NATO, which launched an air campaign over Libya in April to protect civilians from Gadhafi's forces.

NATO members are expected to meet in Brussels on Friday to discuss ending the campaign.

Gadhafi had ruled Libya for more than four decades when a rebellion began in February in the eastern city of Benghazi and then spread across the country.

Libyan officials said one of Gadhafi's sons, Mutassim, also was killed in Sirte on Thursday as was longtime defense chief Abu Baker Younis. Another Gadhafi son, Seif al-Islam, was variously reported to be surrounded, captured or killed in a village near Sirte as conflicting accounts of the day's events circulated.