(1) The Deputy Governor of a State shall hold the office of Governor of the State if the office of Governor becomes vacant by reason of death, resignation, impeachment, permanent incapacity or removal of the governor from office for any other reason in accordance with section 188 or 189 of this constitution.
(2) Where any vacancy occurs in the circumstances mentioned in subsection (1) of this section during a period when the office of Deputy Governor of the State is also vacant, the Speaker of the House of Assembly of the State shall hold the office of Governor of the State for a period of not more than three months, during which there shall be an election of a new Governor of the State who shall hold office for the unexpired term of office of the last holder of the office.
(3) Where the office of the Deputy Governor becomes vacant -
(a) by reason of death, resignation, impeachment, permanent incapacity or removal in accordance with section 188 or 189 of this Constitution;
(b) by his assumption of the office of Governor of a State in accordance with subsection (1) of this section; or
(c) for any other reason, the Governor shall nominate and with the approval of the House of Assembly of the State, appoint a new Deputy Governor.
Section 191 of the Constitution of the Federal Republic of Nigeria