Australia has condemned deadly terrorist attacks in Turkey, as the prime minister urges national unity and respect.
The federal government believes no Australians were killed or injured in the suicide attacks at Turkey's largest airport, which claimed the lives of more than 30 people.
Prime Minister Malcolm Turnbull has urged Australians to stay united following the attacks, believed to be linked to Islamic State.
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"This is a very sad day for the people who love freedom, as we do and the Turkish people do," he told reporters in Sydney.
"It is very important in times like this Australians stay united and recognise that our successful multicultural society is built on a strong foundation of mutual respect."
The bombings were a reminder Islamist terrorists sought to "destroy, divide and kill" Muslims, Christians and others of non-Muslim faith, he said.
Mr Turnbull said he would work relentlessly with security agencies to keep Australians safe, while renewing his commitment to destroying the "murderous" IS in Iraq and Syria.
Australian agencies were the best in the world, he said.
"Many Australians are very familiar with the airport at Istanbul," he said, adding thousands had journeyed to the fields of Gallipoli.
"Australia and Turkey have a common bond, both our countries' foundation stories were told at Gallipoli."
The prime minister extended Australia's condolences to the families of those injured and killed.
Foreign Minister Julie Bishop "utterly and absolutely" condemned Wednesday's bombings at Istanbul's Ataturk Airport.
She said Australian consular staff in Istanbul had visited major hospital and morgues and found no Australians among the dead or injured.
"But there are still a number of unidentified bodies," Ms Bishop told reporters in Perth, adding investigations would continue.
Ms Bishop said the tragic events at one of the world's most travelled airports were just one of several recent terrorist attacks in Turkey.
Australians stood united with the people of Turkey, she said.
Opposition Leader Bill Shorten labelled the attack deplorable, saying his heart goes out to the people of Turkey.
"Turkey is a fantastic country," he told reporters in Sydney.
"We have many proud Australian people of Turkish origin."
Australians are being advised to reconsider travel to Istanbul and those already in the city are warned to remain attentive to their surroundings.
About 280 Australians had registered as being in Istanbul, but Ms Bishop said the actual number was likely to be much higher.
