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Debris has washed up on a West Australian beach and is being examined to determine whether it's related to missing Malaysia Airlines flight MH370.
The Australian Transport Safety Bureau (ATSB) is studying photographs of the material, which washed ashore 10km east of Augusta, about 300km south of Perth.
The items are being held by Busselton police, who are awaiting instructions from the ATSB and Joint Agency Co-ordination Centre (JACC) in Perth.
The ATSB has provided the photographs to the Malaysian investigation team.
ATSB chief commissioner Martin Dolan described the object as appearing to be sheet metal with rivets.
"It's sufficiently interesting for us to take a look at the photographs," he told CNN. "We take all leads seriously."
But Dolan also added strong words of caution: "The more we look at it, the less excited we get."
An Australian Defence Force told CNN the mystery object was "kind of rectangular," but torn and misshapen.
Police said items of interest had been previously reported after washing up on a WA beach and had turned out to be unrelated to MH370, so it was important not to jump to conclusions.
Earlier today, the planned air search was suspended due to poor weather in the search area.
Three aircraft had already departed and had to be recalled.