NEW YORK NATOs deadly airstrikes in Libya, which led to the collapse of the Gaddafi regime, killed and wounded dozens of civilians, but the alliance has largely refused to investigate the casualties, The New York Times reported on Sunday. NATO claimed that during the war, and in statements since sorties ended on Oct. 31, the operation was nearly flawless a model air war that used high technology, meticulous planning and restraint to protect civilians from Colonel Gaddafis troops. But the Times said two weeks after being provided a 27-page memorandum by it containing extensive details of nine separate attacks in which evidence indicated that allied planes had killed or wounded unintended victims, NATO modified its stance. 'From what you have gathered on the ground, it appears that innocent civilians may have been killed or injured, despite all the care and precision, said Oana Lungescu, a spokeswoman for NATO headquarters in Brussels. 'We deeply regret any loss of life. She stated that NATO was in regular contact with the new Libyan government and that 'we stand ready to work with the Libyan authorities to do what they feel is right. NATO, however, deferred the responsibility of initiating any inquiry to Libyas interim authorities, whose survival and climb to power were made possible largely by the airstrike campaign. So far, Libyan leaders have expressed no interest in examining NATOs mistakes. Meanwhile, a prominent international group has called on NATO to investigate civilian deaths. Libyas new interim government, which has been in control of the country since August, estimates that more than 40,000 Libyans were killed during the countrys civil war, Libyan UN envoy Ibrahim Dabbashi said. 'Gaddafi was responsible for these deaths, Dabbashi said. Fred Abrahams of Human Rights Watch (HRW) is in Libya and has been investigating several dozen civilian casualties allegedly caused by NATO. He has been investigating the matter to determine as precisely as possible how many civilians were killed by the NATO airstrikes, which began in March and ceased in October. 'By our count, upto 50 civilians died in the NATO campaign, perhaps more, Abrahams said. 'Were not alleging unlawful attacks, let alone war crimes, he said. He urged NATO to consider compensation 'as appropriate. The International Criminal Courts Chief Prosecutor, Luis Moreno-Ocampo, is investigating allegations that NATO, Gaddafis forces and the rebels all committed war crimes. But Libyas government has not asked NATO to investigate. 'There is no need for a NATO investigation, Dabbashi said. 'Gaddafi placed his forces inside civilian areas, like schools, Dabbashi said. He stated that the government was conducting its own inquiry into the war. After abstaining from a March 17 vote on UN Security Council resolution 1973, which authorized UN member states to enforce a no-fly zone and use 'all necessary measures to protect Libyan civilians, Russia and China repeatedly accused NATO of overstepping its mandate by seeking to oust Gaddafi. NATO spokesman Lungescu acknowledged that there was an incident in June when a bomb malfunctioned and apparently killed some civilians. 'On the case where they admit a mistake, Ive been there, HRWs Abrahams said. 'Its the al-Gharari family - five members including a little girl. I have photos and death certificates. NATO knows this, he added. A Press officer at NATO said the alliance was unaware of any reports from rights groups but was ready to receive them.