Sergey Lavrov, Russian foreign minister, accused the German authorities of a tendency "to paint over reality in a politically correct manner for domestic political reasons" and suggested that "the girl clearly not disappeared for 30 hours voluntarily."[12] Frank-Walter Steinmeier, the German foreign minister, warned Russia not to use the case for "political propaganda".[13] The Russian ambassador in Berlin was summoned to the German Foreign Ministry "for talks".[14] Karl-Georg Wellmann, Russia expert of the German CDU party, said: "The Lisa case is being used as further alleged evidence that the refugee crisis is no longer under control."[4]