North Macedonia's chief prosecutor says that 12 children were among the some 45 people who died in a fiery bus crash in Bulgaria early Tuesday morning.
Lubomir Jovevski spoke to reporters as he visited the scene of the accident on a highway in the west of the country.
The cause of the crash was not immediately confirmed, but it appeared that the bus hit a highway guard rail, crashed and caught fire.
The bus was one of four carrying Macedonian tourists home from a trip to the Turkish city of Istanbul. The crash happened at 2 a.m.
Seven survivors were taken to hospitals for treatment.
The bus was one of four traveling together. Officials said an investigation will be launched.
Photos taken shortly after the crash showed the bus engulfed in flames with plumes of thick, black smoke rising from the scene.
Daylight revealed the burned-out bus, its windows all broken, charred and gutted, sitting upright against the median barrier.
Interior Minister Boyko Rashkov told reporters at the crash site that he had "never in my life seen something more horrifying."
"The picture is horrifying, the people who were on the bus are turned to charcoal," Rashkov said. "It is impossible to say how many they were. There were four buses that traveled together, and it is possible that passengers changed buses during the stops."
Media in North Macedonia, a country of about 2 million people, reported that police were outside the Skopje offices of a travel company that is believed to have organized the trip to Turkey.
Bulgarian Caretaker Prime Minister Stefan Yanev, who also visited the site of the crash, told reporters it was "a huge tragedy."
"I take this opportunity to send my condolences to the relatives of the victims," Yanev said. "Let’s hope we learn lessons from this tragic incident and we can prevent such incidents in the future."
Bulgarian news agency Novinite said representatives from North Macedonia’s embassy visited a hospital where some of the victims were taken.
Albanian Foreign Minister Olta Xhacka wrote online that almost all of those who died in the crash were ethnic Albanians.
North Macedonia's prime minister, Zoran Zaev, told Bulgarian television channel bTV that he had spoken to one of the bus survivors.
"One of the passengers told me that he was asleep and woke up from an explosion," Zaev told bTV, adding that the authorities will gather information that is "important for the families of the dead and the survivors."
European Commission President Ursula von der Leyen expressed her condolences to the families and friends of those who died in the "tragic bus accident" and said that "in these terrible times, Europe stands in solidarity with you."
In 2019, Bulgaria, an EU nation of 7 million, had the second-highest road fatality rate in the 27-nation bloc with 89 people killed per million population, according to European Commission data.