Qa'dah 28, 1431 H/ Nov. 05, 2010, SPA -- A small, private plane chartered to an international oil company crashed near the airport in Pakistan's largest city Friday after the pilot warned of engine trouble, killing all 21 people on board, officials said. According to Ap, the crash was the second in less than four months in Pakistan _ the latest tragedy in a year when massive floods left millions homeless and Islamist militants kept up attacks. The previous crash, in July, killed 152 people and was the worst-ever on Pakistani soil. The Beech aircraft that crashed Friday morning belonged to the JS Air company and had just taken off from the southern city of Karachi. It had been chartered by Pakistan's branch of ENI, an Italian-based oil and gas company, said Roger Amir, an official with the organization in Karachi. The pilot told the control tower minutes before the crash that there appeared to be some fault with the engine, said Pervez George, a spokesman for the country's Civil Aviation Authority. The pilot was ordered to return to the airport, but as he was turning the plane, it went down in an open field. The plane caught on fire after the crash. TV footage from the scene showed it had broken into pieces, with the tail completely separated from the otherwise charred body. «The bodies onboard are beyond recognition,» said Army Lt. Col. Noor Alam, a lead rescue official. Aviation officials said the flight was headed to an oil field in the Bhitshah area in southern Sindh province. State-run Pakistan Television said foreigners may have been among the passengers. Amir of ENI said the company was trying to determine the nationalities of those on board and planned to release the information later. JS Air spokesman Nadeem Hanif said the plane was capable of carrying 19 passengers and two crew members, and that it had been checked before taking off Friday. JS Air is based in Karachi. «It was a fit aircraft, which was cleared to fly,» Hanif said. «Absolutely, there should not be any ambiguity in anybody's mind that it was fit to carry out operations.»