Coronavirus test results were expected on Friday for some passengers and crew aboard a cruise ship held off the California coast. Officials said there were 2,383 passengers and 1,100 crew on board the ship. The Grand Princess lay at anchor near San Francisco on Thursday after a traveller from a previous voyage died of the disease and at least four others became infected.

While the more than 3,500 aboard the 951-foot (290-meter) vessel were ordered to stay at sea as officials scrambled to keep the virus at bay, only 45 were identified for testing, Princess Cruises said in a statement. "The ship will not come on shore until we appropriately assess the passengers," California Gov. Gavin Newsom said.