London (CNN Business) British Airways flights have been disrupted by what the airline describes as a "technical issue."

The problem resulted in delays and what the airline described as a "very small" number of flight cancellations overnight, disrupting an unknown number of passengers.

International Airlines Group ICAGY British Airways , which is owned by, said in a statement that its "teams are working hard to resolve a technical issue which is affecting some of our flights."

The carrier said it was re-booking some customers onto alternative flights and offering hotels to those who are "unable to continue their journeys."

Customers have been asked to refer to the British Airways website to check their flight status. The airline said it was "very sorry for the disruption" to passengers' travel plans.

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