A Norfolk boat builder says it has created the UK's first hybrid pilot boat, which uses far less fuel than current models.

The £1m vessel, made by Marine Goodchild, can use diesel or electric power and will operate at the Port of London guiding ships.

The port estimates it will use less than 10% of the fuel its current pilot boats get through, with carbon dioxide emissions greatly reduced.

That means a drop from 86,000 litres of fuel per year to just 7,000 litres.