Car carrier MORNING CHERRY collided with cargo ship CHEN CHANG 332 at 1812 LT Mar 28 in Pearl Rivery estuary fairway. CHEN CHANG 332 with 3500 tons of sand on board sank 9 crew were rescued, 3 went missing, SAR is still under way. MORNING CHERRY with 2201 cars on board left Guangzhou bound for Korea. Car carrier said to sustain slight damages, she was brought to anchor near collision site. As of 0600 UTC Mar 30, she was still at anchor.