Investing.com -- The fire that led to the closure of Heathrow Airport on Friday is being investigated by the counter terrorism unit of London’s Metropolitan police service (Met), despite there being no current evidence of foul play. The Met stated that due to the incident’s impact on critical national infrastructure, it was necessary for their Counter Terrorism Command to lead the inquiries.

The police service clarified that they are keeping an open mind about the incident and that the specialist unit, with its extensive resources and capabilities, is well-equipped to conduct the investigation swiftly. The Met is cooperating with London firefighters to determine the cause of the fire.

Earlier on Friday, Energy Minister Ed Miliband also confirmed that there was no indication of foul play in relation to the fire. The investigation continues into the incident, which significantly disrupted operations at the airport.

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