A light aircraft carrying 12 people crashed after takeoff and burst into flames in Botswana, killing the British pilot and seven tourists from France, Sweden and Britain, AP quoted an official as saying Monday. The crash occurred Friday in the southern African nation\'s remote Okavango Delta, Civil Aviation Authority spokesman Modipe Nkwe said. He said two French tourists and two Botswana citizens survived. The cause is under investigation, Nkwe said as news of the incident emerged Monday.