LONDON, July 18 (Reuters) - British Airways said on Wednesday that its operations at London's Heathrow, Europe's biggest airport, were disrupted because of an issue with a supplier's IT systems.
"We are working with our supplier to resolve the matter and are sorry for the disruption to our customers' travel plans," the company said in a statement.
British Airways suffered a massive computer system failure last year caused by a power supply issue near Heathrow, which stranded 75,000 customers over a busy holiday weekend.
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(Reporting By Andrew MacAskill; Editing by Kevin Liffey)