Western forces have intensified their strikes on Libyan defence targets flattening a command centre close to Muammar Gaddafi's private residence. A coalition official said, Gaddafi's command and control capability inside the Libyan leader's compound at Bab el-Aziziya in south of capital Tripoli has been demolished.Libyan government spokesman Moussa Ibrahim told reporters that the three-storey administrative building which was flattened is about 50 metres from Gaddafi's iconic tent where the Libyan strongman generally meets guests in Tripoli. It is not clear whether Gaddafi was present at his residence at the time of the strike.Fighting continued with anti-aircraft fire heard in capital Tripoli late Monday. It followed large explosions, which some reports said had come from the direction of a Gaddafi compound that was hit the previous night. Libyan television reported several new attacks.The Libyan government spokesman said many people were killed in an air attack on Sirte airport, although the report cannot be confirmed. The western powers denied that civilians have been killed in their operations. The Arab League which had earlier voiced concern over civilian casualties in the bombardment, later got back behind the campaign. Arab League Secretary General Amr Mussa declared his commitment to the UN-mandated action after a meeting with UN Secretary General Ban Ki-moon and talks with British Prime Minister David Cameron.US President Barack Obama said that the NATO will be involved in helping to coordinate the next phase of action in Libya. Obama said, he expects some kind of transfer of command within days, not weeks. NATO, however, struggled to overcome divisions about its role in the military operation. France, whose fighter jets launched the first salvos in the campaign against Gaddafi on Saturday, has resisted handing the baton to NATO in Libya, fearing a backlash from Arab nations.Germany and Turkey have voiced their own misgivings about the campaign for different reasons. Berlin, which abstained in last week's UN Security Council vote, called for all necessary measures to protect civilians.Turkish Foreign Minister Ahmet Davutoglu criticised the Western strikes and said the international community's objective should not be to launch a large-scale war similar to those in Afghanistan and Iraq.