Five policemen and a couple were shot dead at Okpala junction in Ngor Okpala Local Government Area of Imo State on Friday.
The incident comes less than a month after gunmen ambushed and killed five personnel of the Nigeria Security and Civil Defence Corps in the same area.
While the identities of the policemen remain unknown, the couple were identified as Mr and Mrs Chinaka Nwagu, natives of Amankwo Okpala community.
The slain policemen had driven from neighbouring Abo Mbaise police Division to eat at the junction.
However, while they were eating, some gunmen drove to the scene and opened fire on them.
An eye witness said that while three police were shot dead at the scene, two others ran to a nearby restaurant, but their attackers trailed them and killed them, including the couple who owned the shop they took refuge in.
The eyewitness added that after killing the policemen, the gunmen took away their five rifles.