After a chemical accident, people were asked to close their windows

Residents of a chemical factory were asked to keep windows and doors closed after white fog rose.

South Wales Police have advised this precautionary measure following the incident at Dow’s site in Barry, Vale of Glamorgan.

South Wales Fire Service has several crews on site and has made the same recommendations as the police.

Residents of the Dinas Powys, Sully and Penarth areas were affected.

Silicone has been produced at the site, which was formerly called Dow Corning, since 1952. Around 630 people are employed there.

Dow said: “Dow Performance can confirm that the previously reported incident has been brought under control.

“Dow’s emergency management team and South Wales Fire and Rescue Services have been withdrawn.

“The all-clear horn has sounded.”

The company will investigate the incident to determine how to prevent it from happening again.