A man is missing after he disappeared while swimming with two children at Lake Mulwala in the NSW Riverina.
The 44-year-old was with the children in the lake near a caravan park at Mulwala, when he got into trouble, police said.
The children swam to shore to raise the alarm and a number of people used their boats in a search, but the man, from Mernda in Victoria, remains missing.
The search was stopped at about 11.30pm on Wednesday and police say it will resume on Thursday morning.
Police divers will be among the crews searching for the man.