Operations at the Tank Cleaning Facility at Ricasoli have been stopped after black material was being discharged, the Environment and Resources Authority said.

Following the uploading of the video, on social media on 27 June 2017, of the discharge of black material, ERA took immediate action, the authority said in a statement.

ERA carried out an inspection at Ricasoli Tank Cleaning Facility, where the discharge of black material was observed.

ERA compliance officers ordered the facility to cease all activities with immediate effect and following which the discharge was confirmed to have ceased.

Further investigations are ongoing, ERA said.

Video: Keith Calleja