Malaysia has deported a prominent Bangladesh activist on Thursday, with civil groups describing the government treatment of him as "harassment" against human rights defenders.
Adilur Rahman Khan, secretary of the rights group Odhikar, was found to be "listed among the individuals banned from entering (Malaysia)" after arriving at Kuala Lumpur International Airport early on Thursday, Malaysia's immigration department said in a statement.
He was deported today at 8.05pm, it added.
Khan was due to speak at a two-day conference organised by the Anti-Death Penalty Asia Network.
Rights group Suara Rakyat Malaysia (Suaram) earlier said Khan was being kept incommunicado at the airport's immigration lock-up and appealed for his release.
"Suaram calls for his immediate release and demands that the immigration department stop its persistent harassment against human rights defenders visiting Malaysia," it said in a statement.
Malaysia often denies foreign pro-democracy activists entry into the country without giving an explanation.
The Asian Human Rights Commission urged the international human rights community "to immediately intervene in this case, and secure Khan's release from arbitrary detention".
The commission said it was worried that the detention of Khan, his country's former deputy attorney-general, "is the result of collusion between governments in Bangladesh and Malaysia".
In the past, Khan's group has been critical of human rights violations allegedly committed by Bangladeshi security forces, including torture and extra judicial killings.
Malaysia has also denied Khan a lawyer and the right to speak to anyone, the group said.
In 2015, student activist Joshua Wong, who helped organise the 2014 Hong Kong pro-democracy protests, was denied entry by immigration authorities.
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