https://phys.org/news/2018-10-eu-anti-trust-probe-ryanair.html

"We will investigate whether regional and local authorities in Germany, against the rules, gave an unfair advantage to Ryanair over its competitors," Vestager said in the statement.

The commissioner will try to determine whether the measures were "potentially harming other airlines and having spill-over effects on other regions in Europe," the statement said.