Aerial views of freezing weather on south-east England

Britain remains gripped by sub-zero temperatures after the Met Office recorded the winter's coldest temperatures yet.

Roads and pavements remain icy, with salt supplies "stretched", while rail and air travel are again plagued by delays.

Train companies Southern, Southeastern and Eurostar are operating revised timetables for their services.

This aerial footage from the BBC News helicopter, shows the impact of the big freeze on south London landmarks like Battersea Power station, and residential areas across parts of south east of England.