Explosion on Saturday rocked the polling unit at Umuola Hall, Ward 8, Ogbor Hill, Aba North Local Government Area of Abia State.
Truetalknews reports that this resulted in voters and electoral officials fleeing in different directions.
This online newspaper reports that the Independent National Electoral Commission (INEC) is currently conducting a bye-election in Aba North/Aba South Federal Constituency.
Ossy Prestige, the lawmaker who represented the constituency at the House of Representatives, died on February 6 and his seat was declared vacant.
It was gathered that the election was going on smoothly at the affected polling unit until a substance suspected to be a bomb went off.
No life was lost in the incident but some electoral materials were reportedly affected.
Security agents later stormed the scene to restore order.
Meanwhile, the collation officer of the All Progressives Congress (APC) has been abducted by unknown gunmen.
The victim identified as Engr. Mike Ozoemena is the collation officer of the APC in Aba North Local Government Area of Abia State.
Ozomena also the Campaign Officer of Mascot Uzor Kalu, the APC candidate in the constituency.