A Linhas Aéreas de Angola (TAAG) plane bound for Lisbon from Luanda was diverted to Seville airport today due to a radar failure at Lisbon airport.

"NAV Portugal registered today, late in the morning, at 05:41, a failure in the air traffic management system that forced the activation of the measures provided for situations of this nature to ensure total safety in air transport," reads a statement from the Portuguese Air Navigation Company (NAV), quoted by the Sapo portal.

NAV noted that the system failed at a time of low traffic. Nevertheless, as a precaution, a limitation of traffic flow capacity was implemented, which caused "some delays in the early morning hours.

Additionally, according to a NAV source, a TAAG aircraft connecting the Angolan and Portuguese capitals was diverted to the airport in Seville, Spain.

"Despite the one-time failure of the air traffic management system, the safety procedures in place to handle similar situations ensured that traffic safety was never in question," NAV assured.