A female suicide bomber female was said to have detonated an explosive device killing several worshippers who came for prayers at the mosque.
It added that the Agency had deployed Emergency Rapid Response team to evacuate the dead and provide immediate medical assistance to the injured.
Boko Haram, which is suspected to be responsible for Monday's attacks, has been blamed for the deaths of more than 20,000 people and displacing of 2.3 million others in Nigeria since their insurgency started in 2009.
He told a foreign news agency that, "She killed eight people and injured 15 others".
The youth armed with clubs and sticks smashed one of the SEMA's vehicles and prevented the team from carrying out its mission.
It took the intervention of members of the Civilian Joint Task Force (CJTF) to rescue the SEMA officials.
Grema said that he lost some his friends in the attack.
In another suicide attack in Molai town, located on the outskirts of Maiduguri, two people were reportedly killed.
Confirming the bomb blast to journalists was Ahmed Mohammed, Public Relations Officer of the University of Maiduguri.
However, the Sun newspaper is reporting that the attack was carried out by one female bomber.
The suicide bomber was being chased by security operatives when she detonated the bombs strapped to her chest.