Sri Lankan police have arrested 40 people, including a driver of a van used in one of the suicide bombings that rocked three churches and three hotels in the island nation on Easter Sunday. All of the individuals arrested are Sri Lankan. The death toll from the spate of attacks has climbed to 310, police reported. Hundreds of others have been injured. In the wake of the assaults, the government has declared a state of emergency and launched a hunt for the attackers, believed to be members of a radical Muslim group called National Thowfeek Jamaath.