The first report of the threat came from Oleg Nikolenko, the spokesperson for the Ukrainian Ministry of Foreign affairs. In it, he mentions that one of the packages was sent to the Ukrainian embassy in Zagreb.
The packages supposedly contained animal eyes and were soaked in a liquid of “characteristic colour” (not too difficult to determine which colour it is from the context clues, although not explicitly stated).
In addition to the embassy in Zagreb, similar packages were sent to embassies in Hungary, Netherlands, Poland, Italy, and Austria, as well as to consulates in Naples and Krakow. Additional threats to the embassy in Vatican, Kazakhstan and the USA are also being reported and are investigated.
When asked to comment, Croatian Prime Minister Andrej Plenković briefly stated that the Croatian police is in charge of keeping embassies safe.
We will update this story when further information about the events in the Zagreb Ukrainian embassy becomes available.