Explosions rocked the Libyan capital, Tripoli, Friday as bombs fell near Libyan leader Moammar Gadhafi's main compound and several other areas of the city. Renewed fighting also was reported in the town of Zlitan between rebels and Gadhafi loyalists.

Libyan government spokesman Moussa Ibrahim condemned NATO, which has been helping the rebels with with a campaign of airstrikes. Ibrahim's criticism Friday came after reports that his brother had been killed in a NATO airstrike on the town of Zawiya on Thursday.

Zawiya, 50 kilometers west of Tripoli, also was the scene of renewed fighting between rebels and Gadhafi loyalists. Rebels said Thursday they had seized control of an oil refinery in Zawiya as well as Sabratha, a town west of Ziwaya.

The French news agency said the fighting in Zlitan, east of Tripoli, erupted when rebels launched an assault on the town center.

NATO began launching airstrikes against Libya in March, supporting the rebels who have been fighting against Mr. Gadhafi's 42-year rule.

Also, the International Organization for Migration has launched an effort to evacuate “large numbers” of foreigners from Tripoli. The relief group said Friday that foreign nationals in the capital were becoming “increasingly vulnerable” and now want to leave.