A hazardous chemical has been identified at the pharmaceutical manufacturing company, Euticals Limited, in Sandycroft, Flintshire.
Flintshire County Council has confirmed that potentially explosive pharmaceutical was discovered following a Health and Safety inspection.
The council will be delivering a public information bulletin to up to 3,000 local residents and businesses in the area.
Euticals Limited has temporarily ceased its operations pending laboratory analysis of the material and a permitted plan for its treatment and/or removal from the site to reduce the risk to public safety.
Members of the public and other companies in the vicinity will be advised of any specific precautions that need to be taken as and when necessary. Further announcements will be made when there are any further developments.
More top news
A rally has been held in Cardiff following the EU referendum to show support to migrant communities.
It's 0-0 at half time in Paris as Wales face Northern Ireland in the last 16 of Euro 2016.
Plenty of dry and bright weather today, leaving a dry, rather chilly night across many parts of Wales.