140308120658-09-malaysia-airlines-horizontal-galleryAs multiple mysteries swirl around the disappearance of Malaysia Airlines Flight 370 and around some of its passengers, a growing multinational fleet of dozens of ships and planes is pursuing a potentially promising lead. Late Sunday afternoon, Vietnam sent a boat to investigate a “strange object” spotted by a Singaporean search plane in the area, said Hung Nguyen with the Vietnamese National Search and Rescue Committee. Two reconnaissance aircraft from Australia have joined in the search, Malaysian acting Minister of Transportation Hishammuddin Hussein told reporters Sunday. In addition, the Chinese navy dispatched a frigate and an amphibious landing ship, according to a online post by the Chinese navy. The ships are expected to arrive on site Monday morning (Sunday night ET). MORE