Airbus is probing a security breach involving access of information connected to its commercial aircraft activities.

The airframer says the “cyber incident” resulted in “unauthorised” access to personal data.

But it stresses that the event, centred on its commercial aircraft business information systems, had no impact on the company’s commercial operations.

Avianca Argentina announced the suspension of its international expansion plans two weeks before the launch of its Airbus A320 route between Buenos Aires and Sao Paulo.

The Argentine sister carrier of Colombia's Avianca Group says it made the decision when "taking into account the variables of the national and international markets". It asked all current ticket holders to apply for a refund, and did not offer to rebook the passengers on other carriers.

Avianca Brazil announced its own withdrawal from international routes earlier this month, but had confirmed that the Avianca Argentina-operated route between Sao Paulo and Buenos Aires would “not be affected”.

UK budget carrier EasyJet has put the cost of the London Gatwick drone disruption at around £10 million ($13 million), although overall flight cancellations for the airline fell in the first quarter.

London Gatwick was closed for more than a day during December following the sighting of drones in the vicinity, with a substantial impact on EasyJet, which has its largest base at the airport.

EasyJet says the incident affected around 82,000 passengers and over 400 cancelled flights