At least three killed in California train blast

Police say at least three people have died after a driverless train carrying light crude oil exploded in the Canadian town of Lac-Megantic. The blast sent a fireball and black smoke into the air, forcing the evacuation of 1,000 people. Dozens of buildings in the town have been destroyed. The train's 73 cars, which were filled with light crude oil, reportedly uncoupled from a parked engine and derailed early on Saturday. Eyewitnesses said that by the time the driver-less train reached the town it was traveling at considerable speed. Police spokesman Guy Lapointe said "we have already confirmed one death and expect there will be others". 120 fire fighters attended the blaze and a one-kilometer exclusion zone was set up  amid fears of more of the containers in the carriages exploding.