Igboho was reportedly nabbed Monday night in Cotonou, Benin Republic, at an airport.
A security alert seen by Dailly Post Tuesday morning cautioned residents to avoid volatile areas.
They were advised to be “security conscious and maintained situational awareness”.
The arrest of Igboho was part of federal government’s onslaught against agitators.
The presidency and the Department of State Services (DSS), at different times, hinted that the secessionist would be apprehended.
After the raid of his Soka residence in Ibadan, presidential aide, Garba Shehu, declared Igboho was “conducting acts of terror and disturbing the peace”.
The image maker accused the Yoruba Nation proponent of attempting to build an armoury and planning to either undermine the unity of the nation.
Earlier, at a press conference where weapons found in Igboho’s house were displayed, the DSS vowed that the vocal separatist would be caged.
Peter Afunanya, the spokesman, said Igboho may run and hide as long as he wants, “the end of his shenanigans” was certain.
“Soon, he will not have a hiding place. His strength will sure fail him, the law will catch up with him. The law may be slow. But it will be steady”, he added.