A bomb and gun attack on a theatre used for church services at a university in the Nigerian city of Kano has left at least 16 people dead and a further dozen people injured, according to the Red Cross .
Al Jazeera's Yvonne Ndege, reporting from Abuja, the Nigeria capital, said: "We know people had gathered for a church service when a major blast went off.
"The area around the campus have been cordonned off by security forces.
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[/table] "I must emphasis that it is still unclear and no one has claimed responsibility for the attack."
However, our correspondent said that most suspect the group Boko Haram (http://www.aljazeera.com/news/africa/2010/12/2010123115425609851.html) from carrying out the attacks.
"It does point to the sect Boko Haram, who have been behind dozens ... of bombings (http://www.aljazeera.com/news/africa/2012/03/201232193925550817.html) in Nigeria, particularly in the north," she said.
Lieutenant Iweha Ikedichi, an army spokesman in Kano, said: "A lecture theatre used for worship in the area was attacked."
Explosion and gunfire was heard coming from the theatre on Sunday morning. Soldiers cordoned off the area and were not allowing residents to enter.
Dozens of students usually attend services at the theatre at Bayero University on Sundays.
No group has claimed responsibility for the attacks.
In January, Boko Haram, an armed group seeking the imposition of Islamic law, claimed responsibility for attacks in Kano, the largest city in Nigeria's mainly Muslim north, when co-ordinated bombings and shootings left at least 185 dead.
On Thursday, bomb attacks at the newspaper offices of
This Day in the capital Abuja and the northern city of Kaduna left at least nine people dead.
The group has previously targeted churches, including on Christmas day when at least 44 people were killed in a bombing at a church outside the capital.
A bombing on Easter Sunday in Kaduna, near a church, that killed at least 41 people was a stark reminder of the Christmas attacks, but Boko Haram is not known to have claimed it.
Al Jazeera