Dyfed Powys police: 'It is a slow and methodical process'

An investigation is under way after four contractors were killed in an explosion and fire at a Pembrokeshire oil refinery.

Chief Superintendent Dean Richards from Dyfed Powys police said that the recovery of the bodies will be a "slow and methodical process".

The family of a woman who died has confirmed to the BBC that she was Julie Jones, a 55-year-old fire guard. Another worker is critically ill but stable with burns after Thursday's blast at Chevron's Pembroke plant.