A Hong Kong-flagged product tanker reportedly seized, taken into Iranian waters and released Tuesday has connections to a Chinese company blacklisted by the US government for dealing in Iran’s oil industry.

The 22,400-dwt SC Taipei (built 2000) was boarded by armed men roughly 50 nautical miles (92.6 nautical km) north-east of Fujairah, near the Strait of Hormuz, and held for roughly four hours, according to maritime security consultancy Dryad Global.