"All the parties involved around this particular event have not been involved with any type of outsourcing in any foreign country," Chief Executive Alex Cruz told Sky News.

"They've all been local issues around a local data centre, which has been managed and fixed by local resources," he said.

The GMB union said BA's IT systems had shortcomings after the company made a number of staff redundant and shifted work to India in 2016.

(Reporting by Costas Pitas; Editing by Mark Potter)