In pictures: US snowstorms

1 of 7 Snowstorms have brought havoc to the north-east United States, with transport such as this New York ferry badly affected.

2 of 7 New York's railway system also struggled to cope as did airports. Hundreds of flights were cancelled as storm warnings were posted from Wisconsin to the east coast.

3 of 7 Winds of up to 80km/h (50mph) buffeted New York but wind chill temperatures there of -22C were beaten in Maine, where -38C was recorded at Masardis.

4 of 7 Ground staff at the Philadelphia Eagles stadium will work through Sunday to ensure the National Football Conference championship game with the Atlanta Falcons - the Superbowl semi-final - takes place.

5 of 7 The White House lived up to its name as Washington was also engulfed. Shelters for the needy were opened there and in all major north-eastern seaboard cities.

6 of 7 Washington's Korean War monument in the snow. Authorities ordered cars to be removed from key streets as snow ploughs tried to clear roads ahead of Monday's return to work.

7 of 7 At least some, like this couple in Chicago, found time to enjoy the conditions. More blizzards are forecast across the north-east.