President Volodymyr Zelenskyy's team may cancel his visit to Germany in May, T-Online reports.
Kyiv is upset that information about the visit has become public knowledge, and is considering cancelling the trip.
Sources in the Ukrainian government said they were "very disappointed" that "apparently very sensitive security information was deliberately published in German sources". This was "irresponsible" and could "call into question a possible visit by the Ukrainian president".
It became known that Zelenskyy would begin his visit to Germany in Berlin on 13 May. The next day, he is to be officially received with military honours by Federal Chancellor Olaf Scholz.