HGSS noted that this is the first time its rescue helicopters were put on alert so early in the year as they are usually made available for standby service as of 1 June.
"However, because of the continual increase in the number of mountain climbers, recreational hikers and tourists in non-urban areas, it is necessary to put helicopters on stand-by earlier and that will last until 30 October," HGSS chief Josip Granić said.
He added that HGSS is working on forming additional teams in order to be able to react at any time of the year including prior to the peak tourist season and postseason. Soon helicopters will be on alert throughout the year.