Ekpa was arrested by the police in his residence in the Lahti area of the country, a Finnish paper Helsingin Sanomat reported Thursday.
The separatist has repeatedly declared that there will be no elections in the South-East region of the country and insisted on the observance of a sit-at-home every Monday in the area to protest the detention of the leader of the Indigenous Peoples of Biafra (IPOB) Nnamdi Kanu.
The killings in the South-East have been repeatedly linked to the sit-at-home in the area.
But IPOB has distanced itself from the Finland-based Ekpa who was reportedly billed for an interview before his arrest. (Channelstv)
