The company said some residents in and around Liverpool city could notice temporary low water pressure or a loss of supply as engineers re-route water supplies to all customers.

BBC: People evacuated after pipe bursts in Huyton

The virus is highly contagious and spreads through the faecal-oral route - via contaminated water or food.

BBC: Polio killings a major setback

The enrichment plants at Natanz, Qom and perhaps elsewhere give Iran an early route to HEU. A planned heavy-water reactor at Arak will produce large quantities of plutonium as a by-product, but will not be completed for some years.

ECONOMIST: Nuclear proliferation

No facilities are available en-route and hikers must carry all necessary equipment, medical kits, food and water.

BBC: Hiking Namibia��s Fish River Canyon

Organisers installed four run-through showers along the route and added an extra 2, 600 bottles of water to the normal stock of 25, 000 bottles at each station to help runners deal with the high temperatures.

BBC: Runner dies after London Marathon