A bus early Tuesday morning caught fire on a motorway in western Bulgaria, with 45 persons feared dead.
The incident happened after 02:00 local time (00:00 GMT) near the village of Bosnek, the interior ministry is quoted as saying by the BTA news agency.
Children were among the victims, the head of the fire safety department at the interior ministry, Nikolai Nikolov, told private BTV television.
The bus was reportedly travelling from Turkey to North Macedonia.