Nigeria's city of Damaturu in northern Yobe state has witnessed military and sect clashes coupled with isolated militant attacks that left 14 persons dead.
Those killed included suspected members of Islamic fundamentalist group, Boko Haram, officers of the Nigerian police and at least one civilian, security sources said.
According to Army spokesman Lt Col Sagir Musa a passenger was killed inside a moving vehicle by a bomber who also died in the process while police sources said two sect members were killed during a raid in a market where they planned the attack.
Boko Haram members were also said to have killed a security officer in a different part of the city where an additional nine dead bodies suspected to have been killed by sect members were found.
Boko Haram, carries out frequent attacks in northern Nigeria. The group has been waging a sustained war in Nigeria's northern cities in their bid to install an Islamic emirate in the country.
In several of the sects attacks, bombs, suicide bombers and drive by gun shots have been used to kill hundreds of people.
The oil rich African country has a population of 150 million equally divided among Christians and Muslims. The Muslims are mostly found in the north while the Christians have their majority in the South.