Libyan officials said the weekend attack that reportedly killed Moammar Ghadafi's son and three grandchildren proves NATO is targeting the Libyan leader.

Russia said the Western alliance exceeded its U.N. mandate of protecting Libyan civilians with the strike and called for an immediate ceasefire.

In response to the attack, angry mobs attacked Western embassies and a U.N. office in Tripoli on Sunday.

Libyan government officials took reporters through the rubble of Ghadafi's compound in Tripoli.

Rebel leaders say they don't believe any of his family members died in the recent attack. They believe Ghadafi is trying to divide the international coalition with a false claim.

Meanwhile, the rebel port of Misrata, which has been besieged by Gadhafi's troops for two months, came under heavy shelling Sunday and at least 12 people were killed, a medic said.

Gadhafi has repeatedly called for a ceasefire, but has not stopped his assault on Misrata, a city of 300,000.