Durham police are investigating an apparent chemical explosion on a city bus.
Police said the driver reported that a man got on the bus with a jug and when the man got off the bus later, the jug exploded. The police statement called it a "Draino Bomb."
The death toll in the Boston Marathon bombings has increased to three people, according to the Boston Police commissioner.
"This cowardly act will not be taken within stride," Boston Police Commissioner Ed Davis told reporters this evening. "We will turn every rock over to find the people who are responsible for this."