An unidentified man opened fire on a border policeman and a soldier near the Bulgarian village of Golyam Dervent.
A Bulgarian policeman has been shot dead at the border with Turkey, according to the interior minister.
Minister Ivan Demerdzhiev said the incident happened on Monday evening, when an unidentified person opened fire on a border police officer and a soldier on patrol on a section of the border near the village of Golyam Dervent.
The officer died on the spot while the attendant was uninjured. Additional border patrol forces were dispatched to the scene, but the attacker was not arrested and is believed to be on Turkish territory.
The minister told reporters at the scene that he had received assurances from Turkey that the attacker would be found. He added that border patrols would start using a different weapon, but did not elaborate.
“Patrol teams are facing an unprecedented increase in refugees every day. Last night’s incident was an act of extreme aggression,” Demerdzhiev said, adding that the Turkish side should take a positive approach.
“I also asked the same thing from Europol and the European Commission, adding that this case is the first of its kind,” Demerdzhiev said.
Main migration route
Bulgaria has deployed 350 soldiers and 40 military vehicles along its southern border with Turkey to help border police deal with the growing influx of migrants.
The military will conduct joint patrols along the 259 km (161 mi) border with Turkey.
The Balkan country lies on a key route for migrants from the Middle East and Afghanistan to Europe.
Only a handful of them plan to stay in the EU’s poorest member, using Bulgaria instead as a transit corridor on the way west.