Vote-counting postponed until Tuesday morning , election leader says in tweet . Partial vote count shows opposition candidate leading in Nigeria , INEC reports . Incumbent President Goodluck Jonathan and retired Gen. Muhammadu Buhari faced off in election .
Vote-counting postponed until Tuesday morning , election leader says in tweet . Partial vote count shows opposition candidate leading in Nigeria , Reuters reports . Incumbent President Goodluck Jonathan and retired Gen. Muhammadu Buhari faced off in election .