More than 50 Australians have touched down in Pakistan to help flood victims.
The 51-strong medical task force arrived near Multan in the Punjab province on Tuesday, and a second contingent is in the air after leaving Australia on Wednesday morning.
Up to 180 people will be deployed in the federal government taskforce, including Defence personnel, health workers from state and territory health departments, and aid staff.
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A statement from Foreign Minister Stephen Smith said more than 30,000 people had been displaced by the floods in the area around Multan.
An estimated 20 million people - almost as many as the population of Australia - have been affected by the emergency.
The health workers will be tackling outbreaks of waterborne diseases and cases of malnutrition.
