Just hours after a tanker in New Orleans lost its steering and slammed into a docked river cruise boat, the city's port sued to make sure federal investigators can seize the vessel that is owned by a subsidiary of a Chinese company.

All 197 passengers and crew on the American Heritage cruise ship survived Friday as well as the crew on the tanker.

Officials said 32 people were brought to the hospital, including two police officers thrown into the Mississippi River when the boat rolled.