The state Commissioner of Police, Mr Mohammed Ali, confirmed the killing to newsmen on Tuesday in Asaba.
He said that the police however killed two of the gunmen, but regretted that a stray bullet from the police killed an old woman during the gun battle with the hoodlums.
Ali, who said the two officers were attached to “Operation Delta Safe” of the command, noted that the attackers took away their service rifles after the attack.
“During the attack, the police also killed two of the gunmen, and recovered two pump action guns and some charms from them.
“However, an old woman was also killed in the process by a stray bullet as the police team were chasing the gunmen.
“We have deposited the body of the woman in a morgue and talks is ongoing with the family to see that something is done,” Ali said.
Meanwhile, a resident of Ugbolu community, Mr John Ubaka, has decried the spate of armed robbery attacks along the road.
He said the road had become a safe haven for armed robbers who terrorised road users particularly at night, on a daily basis.
“This road is a dangerous place to ply, especially at night. There is no security here at all.
“Government must step up security patrol along this road, because armed men have taken over this route,” Ubaka said.