Iran is to speed up the legal process for the seized Stena Bulk tanker Stena Impero.

Foreign minister Mohammad Javad Zarif pledged to “expedite” the case of the 50,000-dwt ship (built 2018).

But he maintained that a crime had still been committed by the UK in seizing the VLCC Grace 1 in Gibraltar.

“We will expedite the legal process for the British tanker that is now in our custody after they basically committed sea crimes by taking our ship," he added.