New Delhi [India], September 20 (ANI): Air India on Saturday issued a travel advisory due to a cyberattack on a third-party service provider affecting check-in and boarding systems at major European airports, including London's Heathrow. This disruption may cause delays in the check-in process, but Air India's ground teams in London are working hard to minimise the inconvenience. In an update posted on X, Air India said, 'A third-party passenger system disruption at Heathrow may cause delays in the check-in process. Brussels Airport confirmed that the attack late Friday night had forced automated systems offline, leaving only manual check-in and boarding possible. London Heathrow Airport said Collins Aerospace, a global company that provides check-in and boarding systems to several airlines, was facing a technical issue linked to the disruption.