Twelve people were killed on Saturday in Croatia when a bus carrying Polish pilgrims went off the road.
According to officials, all 31 surviving passengers are hurt, with some battling for their lives in hospitals.
According to the Polish Foreign Ministry, the passengers were all adults from Poland.
The trip, organized by the Brotherhood of St Joseph Catholic group, included three priests and six nuns. They were traveling to Medjugorje, a Catholic shrine in Bosnia.
The bus veered off the A4 road between Jarek Bisaski and Podvorec, northeast of Zagreb, and the vehicle ended up in a roadside ditch.
The accident happened at around 05:40 local time (04:50 GMT).
It was initially reported that 11 people had been killed, but one more person died later in hospital, Croatian Interior Minister Davor Bozinovic said.
“Some of the injured passengers are fighting for their lives,” Mr. Bozinovic told reporters.
The Polish Foreign Ministry said the driver is not thought to be among the fatalities, but this is yet to be confirmed.
Croatian Prime Minister Andrej Plenković expressed his condolences to the families of the victims, adding in a post on Twitter that emergency services were doing all they could to help.
Two Polish ministers are traveling to Croatia in the wake of the incident, local media reported.