11 killed as Nigerian extremists breach military security to bomb church That attack caused no casualties, a military spokesman said, but drew people to the scene - only to see them caught in the second blast ten minutes later, when explosives inside a Toyota Camry were detonated. The country's population of 160 million is evenly split between Christians and Muslims. Kaduna state, which has a mixed Muslim and Christian population, often suffers from sectarian tensions. At least 2,800 people have died in fighting since Boko Haram's insurrection began in 2009, according to Human Rights Watch. Most in the northeast of the country, where the sect usually attacks politicians and security forces. Former Prime Minister Tony Blair visited Nigeria with the Archbishop of Canterbury-designate Justin Welby last week to launch a programme by Blair's foundation to reconcile religious differences in Africa's most populous nation.