NATO launches airstrike on Libyan capital

NATO warplanes launched a new round of airstrikes in Tripoli, the Libyan capital, witnesses said.

They told Al Jazeera the attacks targeted several sites, including Muammar Gaddafi's compound.

Earlier, the United Nations humanitarian chief called for a break in fighting to allow medical aid into the country.

Al Jazeera's Monica Villamizar reports.