The given reason is bizarre.
As Index reported on the 17th of June, 2017, a Croatia Airlines Airbus A320 on a normal flight south from the capital to Dubrovnik eventually ended up in the Italian capital of Rome last night. According to reports, strong bura had something to do with it.
As the strikes exceeded 40 knots, the crew planned to return to Zagreb, which was an alternative, but as the specialised site Avioradar was unofficially informed, Zagreb's Franjo Tudjman airport claimed there were "not enough people to take the aircraft." A rather odd statement to make to say the very least, considering that the official working time for Zagreb Airport is supposed to be 24 hours.
The crew then redirected the flight to Leonardo da Vinci Fiumicino Airport in Rome where it landed roughly one hour after midnight.
Queries into what actually happened have been put to the correct bodies in Zagreb Airport, but as yet, no official responses from the correct channels have been reported.