PERTH, Australia — A day after the search for the Malaysian jetliner shifted to a new area of the Indian Ocean, ships on Saturday plucked objects from the sea to determine whether they were related to the missing jet. None were confirmed to be from the plane, leaving searchers with no sign of the jet three weeks after it disappeared.

Meanwhile, a Chinese military plane scanning part of the search zone, which is roughly the size of Poland, spotted several objects floating in the sea, including two bearing colors of the missing jet.

It was not immediately clear whether those objects were related to the investigation into what happened to Malaysia Airlines Flight 370, which disappeared March 8 en route from Kuala Lumpur, Malaysia, to Beijing, and officials said the second day of searching in the new area ended with no evidence found of the jet.

Dozens of relatives of passengers on the missing plane were to fly from Beijing to Kuala Lumpur on Sunday to seek answers from Malaysia’s government as to what happened to their loved ones. Two-thirds of the 229 passengers aboard Flight 370 were Chinese, and their relatives have expressed deep frustration with Malaysian authorities since the plane went missing.

Ships from China and Australia on Saturday scooped up items described only as “objects from the ocean,” but none were “confirmed to be related” to Flight 370, said the Australian Maritime Safety Authority, which is overseeing the search.