(Bloomberg) -- Germany will order 45 fighter aircraft from Boeing Co. to replace the Luftwaffe’s aging Tornado jets, Der Spiegel magazine reported Sunday.

Defense Minister Annegret Kramp-Karrenbauer emailed her U.S. counterpart Mark Esper on Thursday to inform him of the decision, the magazine said, without identifying the source of its information. Germany will order 30 F/A-18 Super Hornets and 15 EA-18G Growlers, the report added.

The German ministry couldn’t immediately be reached outside regular business hours. The Pentagon in Washington declined to comment.

Kramp-Karrenbauer’s actions may upset the Social Democrats, the junior partners in Chancellor Angela Merkel’s ruling coalition, as she didn’t inform them before making her decision, Der Spiegel said.

Kramp-Karrenbauer’s predecessor, Ursula von der Leyen, had offered a compromise to the SPD under which Germany would buy a combination of U.S. fighters and the Eurofighter Typhoon manufactured by Airbus SE, according to Der Spiegel.

(Updates with Pentagon comment in third paragraph.)

©2020 Bloomberg L.P.