The Department of State Services (DSS) has released labour leader Joe Ajaero.
Ajaero, who confirmed his release to our correspondent, said the DSS allowed him to go home around 11 pm on Monday.
The Nigeria Labour Congress president said he was grilled for about 15 hours since his arrest around 7 am at the Nnamdi Azikiwe International Airport, Abuja.
Ajaero, however, said his travel passport was seized by the secret police.
The labour leader said though he was detained by the DSS, some police officers also came around to grill him at the DSS office in Abuja over the #EndBadGovernance nationwide protests that took place in August.
Ajaero said he was quizzed over alleged terrorism financing involving a British national, Andrew Wynne.
