Canberra, Feb. 11 -- Australian Prime Minister Scott Morrison campaigned over the weekend to block a bid to allow asylum seekers in offshore camps to come to Australia for medical treatment, saying tough rules on migrants should not be eased.

Mr Morrison said the bill would "take control from the government", and "unleash a world of woe".

Australia has sent asylum seekers who arrive by boat to detention centres on the Pacific islands of Nauru and Manus, A report in BBC said.

"The problem with the bill is it takes control from the government and contracts it out to others who don't have those same interests or responsibilities," Mr Morrison said.

The detention centre on Nauru has been dogged by allegations of widespread abuse and trauma...