The North Atlantic Treaty Organization (Nato) and European Commission have joined a growing chorus of criticism against Iran following an attack on a Zodiac Maritime tanker.

The incident, off Oman, claimed the lives of a UK national and a Romanian crew member.

The comments from Nato and the EC come shortly after the UK, the US, Romania and Israel all pointed the finger at Tehran for the use of military drones against Zodiac's 49,992-dwt tanker Mercer Street (built 2013).