4 July 2012
Last updated at 22:07
The US has been celebrating Independence Day with festivities in towns and cities across the country.
The day commemorates the Declaration of Independence on 4 July 1776, a document that announced the legal separation of 13 North American British colonies and Great Britain.
The day is usually celebrated with patriotic activities such as parades, firework displays, barbecues, baseball games and family reunions.
Republican presidential candidate Mitt Romney and his wife Ann made a speech to a group of supporters in Wolfeboro, New Hampshire, after participating in the Fourth of July parade in the town.
Meanwhile in Brooklyn, New York, spectators flocked to Coney Island to watch Nathan's Famous Fourth of July International Eating Competition, an annual hot dog-eating event.
This year, the national holiday has coincided with extremely high temperatures across much of the US. The National Weather Service has issued warnings that heat indices could top 105F (41C) in parts of the Midwest and mid-Atlantic region.
Despite the holiday, repair teams are scrambling to restore power to nearly one million storm-struck households who have had no electricity since Friday night, when an unprecedented storm known as a derecho brought down trees and power lines.
Utility companies have said thousands of personnel are working 16-hour shifts to help customers, but they warned some people might not get power back before the end of the week.