Authorities are trying to confirm the welfare of two Australian journalists aboard a protest flotilla which has clashed with Israeli commandos.
Fairfax journalist Paul McGeough and photographer Kate Geraghty were last heard from around 12pm (AEST) on Monday while on board the MV Samoud.
More than ten people are believed to have died when Israeli forces stormed the flotilla, which is trying to breach an Israeli blockade and transport aid to Gaza.
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Safety uncertain
Australia's Department of Foreign Affairs and Trade has released a statement saying it is aware the two Australian reporters were aboard the flotilla.
"We are seeking to confirm their safety and precise whereabouts," the statement said.
"There is no indication, at this stage, that any Australians have been injured."
A Fairfax spokesman has told AAP the company has not heard from the reporters since noon.
Other Aussies possibly on board
DFAT has contacted Israel's Ministry of Foreign Affairs, and is trying to establish if any other Australians were on the flotilla.
More than 700 people are aboard.
Raid 'shocking'
Meanwhile, the Australian Greens have criticised Israel's actions as an "ugly episode".
"The deadly raid on the aid convoy to Gaza is shocking and Israel, along with convoy members, will be judged in the court of world opinion," Greens' leader Bob Brown said in a statement.
Australia should demand an immediate explanation of the intervention, and should demand details about the welfare of the two Australian journalists, Senator Brown said.
He accused Israel of blocking information from the flotilla, and said that would not be tolerated.
