Blaze at Pure Wafer Limited's Swansea industrial unit

Police are advising residents to keep their windows and doors shut due to a fire at a large industrial building on Swansea enterprise zone.

An area around Pure Wafer Limited has been sealed off and there are chemicals and cylinders at the scene on Millbrook Drive, Llansamlet.

The fire service said they are protecting a "large oxygen and nitrogen store".

Six fire crews have been tackling the blaze since 9:01 GMT on Sunday.