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What caused Heathrow Airport to come to a standstill

A fire at an electrical substation near Heathrow Airport caused a major power outage, leading to flight cancellations and disruption for thousands of travelers. The incident occurred before midnight on Thursday, prompting airport officials to halt operations for safety. The London Fire Brigade responded with 10 fire engines and 70 firefighters; they contained the fire and will conduct ongoing safety inspections. Energy Secretary Ed Miliband reported that the main power supply and backup generators failed, affecting operations for about 200,000 travelers expected on Friday. The National Grid worked to restore power, with over 62,000 customers reconnected by morning, but many remained without electricity. Investigators assessed the cause of the fire, and counterterrorism detectives were brought in due to the disruption's impact on national infrastructure. Long-haul flights diverted to alternate airports, and significant delays affected short-haul flights. Approximately 4,000 tons of cargo became stranded due to the closure, complicating logistics for businesses. Even with a potential resumption of operations by Saturday, ongoing effects are expected to disrupt travel.

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