Hundreds of jobs at the Coryton oil refinery in Essex are under threat after Swiss owner Petroplus said it would file for bankruptcy.

Administrator PricewaterhouseCoopers says the priority is for work to continue at the refinery without disruption.

Other firms say they will still be able to supply fuel, but petrol retailers fear diesel prices will spike.

Energy Minister Charles Hendry said there was no need to stock up on fuel.

As well as refining oil for use as fuel, the Coryton site – which is one of eight refineries in the UK – also imports fuel from other countries which has already been refined.

It also supplies 20% of fuel for south-east England.

Although several lorries left the site before 0730 GMT on Tuesday, there has been no reported movement since.