KUALA LUMPUR, September 15 (Reuters) - Malaysia said on Thursday that a large piece of aircraft debris discovered on the island of Pemba, off the coast of Tanzania, in June, was from the missing Malaysia Airlines jet MH370. A search of more than two years has turned up few traces of the Boeing 777 aircraft that disappeared in March 2014, with 239 passengers and crew on board, soon after taking off from Kuala Lumpur, the Malaysian capital, bound for Beijing. The debris, an outboard flap, will be examined further to see if it can yield any insight into the circumstances around the missing plane, Malaysian Transport Minister Liow Tiong Lai said in a statement.