Three Navigator Holdings-owned LPG carriers have been accused by the US government of working to get petroleum to Syria's Bashar al-Assad regime, circumventing both US and European Union sanctions.

Last week, the 22,600-cbm Navigator Grace (built 2010), the 22,000-cbm Navigator Pegasus (built 2009) and the 20,500-cbm Navigator Gemini (built 2009) were included in a US Treasury Department list of 33 vessels that performed ship to ship transfers to get the product to the war-torn country's ruling government.