The Shoreham Herald reports:

The UK Power Networks site, off the A283 Steyning bypass, has been targeted, along with more than 150 substations which deliver essential power supplies in the south east, London and the east of England.

The incidents can put power supplies at risk by delaying access to vital equipment and endanger staff visiting the sites to carry out inspections, maintenance or repairs.

A piano, builders’ rubble, guttering and downpipes have all been found outside the Steyning substation.

Fly-tipping is a criminal offence under the Environmental Protection Act, carrying significant fines and even prison sentences in more serious cases.