Greece scrambled fighter jets to chase off six Turkish aircraft trespassing into Greek airspace, defense officials said, SputinkNews reports.

Turkish planes, flying in a formation, violated Greek airspace 20 times on Wednesday, officials said, cited by the local Kathimerini newspaper.

Turkish aircraft reportedly crossed into Greece in the northeastern, central and southeastern Aegean Sea, the body of water dividing the two countries’ mainlands. At least two of the fighter jets were armed, officials said.