British Airways Cancels All Flights From Heathrow, Gatwick

(LONDON) — British Airways canceled all flights from London's Heathrow and Gatwick airports on Saturday as a global IT failure upended the travel plans of tens of thousands of people on a busy U.K. holiday weekend.

The airline said it was suffering a "major IT systems failure" around the world. Chief executive Alex Cruz said "we believe the root cause was a power-supply issue and we have no evidence of any cyberattack.