Police in Nigeria say five officers have been killed during an attack in Imo state in the south-east of the country.
Separatists in the area have frequently targeted police stations and government buildings.
The authorities have blamed the banned group, the Indigenous People of Biafra (Ipob) for most of the attacks. But the group has not commented.
Ipob has been campaigning for the Igbo people of south-eastern Nigeria to have their own independent country.
Local media reports say at least eight people were killed in the latest violence, including soldiers and members of Nigeria’s Civil Defence Corps – a paramilitary agency.