The Australian Greens want Prime Minister Tony Abbott to join President Barack Obama and others around the world in condemning new laws in Uganda that outlaw homosexuality with sentences of life imprisonment.

"Tony Abbott has a moral obligation to condemn these horrific laws and to work with the global community to guarantee the safety of all those named as LGBTI in the Ugandan tabloid Red Pepper," Greens Leader Christine Milne said.

The Australian Greens have called for Scott Morrison to be sacked from the Ministry following revelations that the violent attacks on Manus Island took place inside the refugee prison camp, resulting in the death of asylum seeker Reza Berati.

"The Prime Minister must sack the Minister and close his cruel refugee prisons immediately," Greens Leader Christine Milne said.

"Tony Abbott must take personal responsibility for the failure of the morally bankrupt and cruel offshore processing regime that was started by Labor and embraced by his government.

The Australian Greens have called on Tony Abbott to initiate a Royal Commission into the conditions and management of Australia's offshore detention camps, which led to the death of an Iranian refugee while in Australia's care on Manus Island.

"The tragedy of a refugee killed while in Australia's care should be the final nail in the coffin for Labor and the Abbott government's morally bankrupt and cruel offshore processing regime," Australian Greens Leader, Senator Christine Milne said.

The Australian Greens are deeply concerned about implications of the diplomatic crisis that continues with Indonesia.

"I am deeply disappointed and alarmed at the rate of deterioration in the relationship between Indonesia and Australia," Australian Greens Leader Christine Milne said.

"Australia and Indonesia should be building and deepening our friendship but instead Tony Abbott has allowed his cheap domestic politics of ‘stop the boats' to undermine the long-term interest of the nation.

Australians Greens Leader Christine Milne says the Abbott government must immediately confirm or deny claims that asylum seekers are being told they must return home or face indefinite detention.

"Under international law it is illegal for a country to send a refugee back to the country they escaped from. It is illegal and cruel," Senator Milne said.

"It is a shameful and cruel government that gives desperate asylum seekers a Sophie's choice between indefinite detention and return to the violence they have fled.

Australian Greens Leader Christine Milne has called for Immigration Minister Scott Morrison to immediately explain the extent of the Australian Government's involvement with security forces implicated in violent interactions on Manus Island.

"This is the second time PNG security forces have been implicated in violence. Scott Morrison must immediately explain whether they are on our pay roll and the exact extent of their involvement with Australian operations at Manus Island," Senator Milne said.

News today that Immigration Minister Scott Morrison has directed department officials and detention centre staff to refer to asylum seekers as 'illegal' is not only discriminatory but a disturbing move to politicize public servants.

"People seeking asylum - by boat or any other way - are not illegal, they are human beings," said Australian Greens Leader Senator Christine Milne.

"It is not illegal to seek asylum under Australian or international law.

"Dehumanising people is never acceptable.

The Greens plan for an expert panel to monitor the health of refugees in offshore detention.

Conditions in Australia’s offshore refugee camps are harsh and dangerously inadequate, with no safeguards or oversight for medical and mental health, and no transparency. The old parties are risking the health and wellbeing of thousands of refugees, including children, by dumping them in appalling conditions in Nauru and Papua New Guinea. A caring nation looks after people fleeing persecution and their physical and mental health.