The Department of State Services, DSS, has reportedly arrested an investigative journalist, Adejuwon Soyinka.
Soyinka is the Regional Editor of The Conversation Africa.
He was reported to have been arrested upon arrival at the Muritala Muhammed International Airport in Lagos on Sunday, via a Virgin Atlantic flight from the United Kingdom.
No reason has been given for his detention by the security agency.
Soyinka has also not been reachable, as messages and calls to his phone have gone unanswered.