Extreme cold and heavy snow in Europe has killed many already and threatens to continue for a number of days.

At least 400 people have died, with eastern Europe and the Balkans particularly badly affected, but officials say the death toll could rise with many remote areas still inaccessible.

More power, water and food shortages are expected as demand increases, while heavy snowfalls are also spreading to northern Africa, with Libya and Algeria already affected.

Al Jazeera's Emma Hayward reports.