This is reported by the publication Dziennik gazeta pravna.
“Back in the spring of last year, after a big dispute over whether and how to transfer aircraft, Poland delivered a certain number of MiG-29s to the Ukrainians,” the report says.
It is specified that the fighters were delivered in a "combined" way.
Earlier, Polish Defense Minister Mariusz Blaszczak said that Poland would train and equip a Ukrainian military brigade with T-72 tanks and infantry fighting vehicles by the end of March.