A suspected people smuggler has been caught at Auckland airport, but he can not be prosecuted in New Zealand and will be transferred to Malaysia.
Immigration New Zealand said staff checking flights out of Buenos Aires saw four people with Malaysian passports being returned home after being denied entry to Argentina.
Border Operations manager Karen Urwin said the four passengers were stopped by immigration officers in the transit area of Auckland airport.
They noticed their accents were inconsistent, and the names on their Malaysian passports did not match their ethnicity, she said.
An investigation found three of the four passports were false.