The owner of the C Star — the vessel hired by controversial right-wing group Defend Europe amid allegations it will be used to disrupt the work of non-governmental organisations (NGOs) in helping migrants safely cross the Mediterranean Sea — says the ship’s crew will abide by the laws of the sea.

Concern is growing that the 500-gross-ton (gt) research vessel is intent on stopping NGO rescue operations and that will add to the burden on merchant shipping in the region.