The federal government will not confirm reports 203 Tamils have been handed over to Sri Lankan authorities after they were intercepted trying to reach Australia by boat.
Human rights groups have warned the Tamils could face torture, rape and long-term detention if they are returned to Sri Lanka.
Mr Morrison will attend a ceremony this week to mark the handing over of two former Customs bay class patrol boats that Australia has given the Sri Lankan government.
But he's been challenged has been challenged to visit the war-torn north to hear first hand about ongoing human
rights abuses.
Australasian Federation of Tamil Associations spokesman Siva Sivakumar is urging Mr Morrison to also visit Jaffna so he can see the region hardest hit during Sri Lanka's 37-year civil war.
"We would him encourage him to (go to Jaffna)... to meet the Tamil leaders, the church leaders, the Tamil representatives," Mr Sivakumar told AAP.
If Mr Morrison sticks to the itinerary of army commanders, he said, he'll only be shown what the Sri Lankan government wants him to see.
"Show some mercy," Mr Sivakumar said.
Morrison will arrive in the country on Wednesday and meet the country's foreign minister and defence officials.
The United Nations refugee agency has been critical of potential shortcuts in processing the asylum seeker claims, which have reportedly happened at sea.
One boat originated in India with 153 Tamil asylum seekers, including about 30 children, and a second, carrying 50 people, may have sailed from Indonesia.
Senior government minister Eric Abetz declined to comment on what he called an "operational matter", but said border protection authorities would treat the asylum seekers according to Australia's international obligations.
He rejected suggestions the government had "disappeared" the Tamils.
"In due course these matters will be revealed, but it makes absolute sense that you do not give a blow by blow description in the middle of an operational matter," Senator Abetz told ABC television on Sunday.
Share
