An offshore support vessel was boarded by armed robbers while operating in the Gulf of Mexico, according to reports.

The 3,100-dwt Natalie (built 1982) was boarded while operating in the vicinity of the jack-up drilling rig Odin, 12 nautical miles (22.2 km) north-east of Coatzacoalcos in the Mexican state of Veracruz.

"Social media reporting indicates that the crew were subjected to violent armed boarding and robbery of personal belongings," maritime security firm Dryad Global said on Monday.