Two girls who were taken from their home in the interior of Queensland and placed in immigration detention along with their Tamil parents are suffering from behavioral problems, says the Tamil Refugee Council.
Nades and Priya arrived in Australia separately by boat in 2012 and 2013 after the civil war in Sri Lanka and settled in the city of Biloela with a temporary bridge visa, which sold out in March.
The council says it has obtained a medical report for the family, which it says shows that their daughters of Australian origin, aged three and one, have developed behavioral changes since their arrest.
"The family has been very isolated in detention, and the conditions described are not appropriate for young children, particularly the lack of contact with other children and restrictions on their freedom of movement," he says.
"There are no play groups or early childhood learning."
The council is asking the federal government to release the family and allow them to return to Biloela.
Nades was preparing to go to work at the local meat factory on March 5 when Australian Border Force officers broke into his house before dawn.
The residents of the small town have been fighting for their release since then, saying they fear what might happen to the family if they are deported.