President Muhammadu Buhari has condemned the attack which occured in Konduga Local Government Area of Borno State.
It was not clear who was responsible for the attacks but the state of Borno is frequently targeted by the extremist group Boko Haram, which regularly uses women and men as suicide bombers in a similar manner.
Kachalla said that about 40 other people were wounded and taken to nearby hospitals.
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Ali Hassan, leader of a self-defence group in Konduga, told AFP news agency that the owner of the hall had prevented one bomber from entering.
Since then, more than 20,000 people have died and nearly two million people have been displaced, according to estimations from the United Nations.
"The information revealed that it was three suicide bombers, two female and a male, who detonated the IEDs, killing themselves in the process and others around a viewing center and a joint opposite the clinic at Mandarari ward, Konduga", revealed a vigilante who doesn't want his name mentioned.
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In a statement by his Special Adviser on Media and Publicity, Femi Adesina, in Abuja, the President condoled with the government and people of the state over attacks by suicide bombers.
At least 27,000 lives have been killed and about two million people have been forced to flee their homes in the decade-long conflict.
Attacks by the rival groups play into efforts to assert greater influence, according to Yan St-Pierre, a counter-terrorism consultant for MOSECON, a law firm based in Berlin.
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"In recent weeks it has been noticed that the Shekau Boko Haram faction has tried to redo its image", St-Pierre added.