The FBI is investigating what it called a “suspected homicide” aboard a cruise ship that returned to port after departing from Galveston, Texas. The agency announced the investigation in a brief statement Monday. The probe is ongoing, and the FBI has not provided further details. The company that operates the MSC Seascape said it has resumed its voyage and left Galveston as of Monday afternoon. A spokesperson for MSC Cruises said the company is cooperating with authorities and providing support to those impacted. The towering white vessel can host nearly 5,900 guests and has more than 1,600 crew.