Eyewitness Irene Wambui says worshippers "ran for their lives" One child has been killed and three seriously hurt, police say, in a grenade attack on a church's Sunday school in the Kenya capital, Nairobi. The attacker targeted St Polycarp's church on Juja Road. A police spokesman blamed sympathisers of Somalia's al-Shabab Islamist militant group, angry over Kenya's role in the UN-backed intervent