Explosion rocks cargo ship leaving Baltimore Harbor

An explosion rocked a cargo ship carrying coal in Baltimore, causing a fire and sending a stream of smoke into the sky but injuring nobody, authorities said Monday evening. Coast Guard crews and firefighters from the city of Baltimore were among those who responded, and the fire was extinguished on the still-moving vessel, Coast Guard Petty Officer 1st Class Matthew West said. The cause of the blast and subsequent fire was under investigation, he said. Video showed black smoke