Swimmer missing in NSW river A SEARCH is under way for a swimmer missing in the Hawkesbury River north of Sydney. Police say a group of friends were swimming in the river, west of the Windsor Bridge, just before 6pm (AEDT) on Wednesday when a man got into difficulty. Emergency services were called to the scene after the man, believed to be 22, failed to surface. A police helicopter and PolAir are searching the area. Police divers are en route.