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05:22 GMT - Oil slicks - During the initial search on Saturday Vietnam's military said two oil slicks had been spotted, but no debris. "Two of our aircraft sighted two oil slicks around 15 to 20 kilometres (10-12 miles) long, running parallel, around 500 metres apart from each other," the Vietnam army's deputy chief-of-staff, Vo Van Tuan, told state-run VTV. "We are not certain where these two oil slicks may have come from so we have sent Vietnamese ships to the area." "I think the two oil slicks are very likely linked to the missing plane," Vice-Admiral Ngo Van Phat, who is helping to direct the search mission, told AFP.