Record-breaking heat has disrupted Independence Day celebrations in the United States as the country marks the 250th anniversary of the Declaration of Independence.
In Washington, the traditional parade was cancelled after forecasters warned of dangerously high temperatures. Authorities said the decision was made to protect participants, spectators and emergency workers from the risk of heat exhaustion and other heat-related illnesses.
Several other cities across the country also changed or shortened public events as temperatures climbed to extreme levels. Officials urged people to avoid spending long periods outdoors, drink plenty of water and check on elderly relatives, children and vulnerable neighbours.
The heat wave has added pressure to power grids as millions of households and businesses rely heavily on air conditioning. Energy providers in several regions warned that demand could remain high throughout the holiday period.
The anniversary was expected to be one of the largest national celebrations in recent U.S. history, with parades, concerts, fireworks and community events planned across the country. However, extreme weather has forced organisers to rethink safety measures and adapt celebrations to changing conditions.
Meteorologists say the current heat wave is part of a wider pattern of more frequent and intense summer heat events. Experts warn that large public gatherings will increasingly need stronger planning for extreme weather, especially during major holidays.
Despite the disruptions, many communities continued with smaller indoor or evening events, while officials said public safety must remain the top priority during the historic anniversary.
