A Spanish frigate was steaming towards to an “alleged pirate-hijacked” Navibulgar bulker drifting in the Arabian Sea on Friday after it was boarded by unknown assailants.

The European Union naval force said the ESPS Victoria was heading to the 41,600-dwt Ruen (built 2016) to evaluate the situation after the Bulgarian government said the ship had been hijacked.

The Bulgarian News Agency (BTA) was citing Maria Gabriel — the country’s deputy prime minister and foreign minister — making comments to reporters in the parliament in Sofia on Friday.