Nearly 50,000 tonnes of US food aid bound for areas of Sudan affected by conflict arrived in the country on Tuesday, the Daily Mail reported, citing the UN World Food Programme.

"The US vessel Liberty Grace docked in Port Sudan carrying 47,500 tonnes of sorghum, a household food staple in Sudan," the WFP said in a statement.

The aid from the United States Agency for International Development would help "conflict-affected communities and other food insecure and vulnerable groups," the WFP said.

The huge tanker was moored in Port Sudan on the country's Red Sea coast on Tuesday as dozens of dockworkers unloaded sacks of the grain onto trucks.

Washington's charge d'affaires in Khartoum, Jerry Lanier, visited with a delegation from his embassy to see the shipment's arrival.