The casualty figure has not been ascertained.
Reports from Maiduguri, the Borno State capital, indicate that several explosions occurred in various locations in the town claiming several lives.
There is no official casualty figure yet.
The explosions occurred just as opposition governors were rounding off a meeting at the government house, Maiduguri over the ongoing merger talks of major opposition parties in the country.
Borno is one of the states controlled by the All Nigeria Peoples Party, ANPP, one of the four parties merging to form the All Progressives Congress, APC.
Daily Trust Newspapers is reporting that among the casualty figures are two soldiers.