A staff member suffered burns after a highly acidic chemical from a parcel leaked onto his leg at an Orpington sorting office.

The male staff member, who does not want to be named, was injured by the unknown package received through the post on Friday (October 10).  

It is thought to have contained drain cleaner which is 91 per cent sulphuric acid.

He was taken to hospital suffering from burns to his leg but has since been discharged.

Police and the London Fire Brigade confirmed they were called at around 1.30pm to reports of a chemical leak at a business premises in Vinson Close.

The London Ambulance Service hazardous area response team posted this tweet:

The exact cause of the leak is being investigated

Fire crews set up a decontamination zone.