BEIJING, March 10 (Reuters) - China's Foreign Ministry on Monday urged Malaysia to step up search and investigation efforts over a missing Malaysia Airlines jetliner with 239 people on board.
Ministry spokesman Qin Gang made the comments at a daily news briefing.
Questions have mounted over possible security lapses and whether a bomb or hijacking could have brought down the Beijing-bound plane, after Interpol confirmed at least two passengers used stolen passports and said it was checking whether others aboard used false identity documents.
(Reporting by Ben Blanchard, Writing by Michael Martina)
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