SOFIA, Aug. 8 (Balkan View) – A drone entered Bulgarian airspace from the direction of Romania and exploded near the border on Saturday, about one kilometre from a compressor station on the Trans-Balkan gas pipeline, prompting Bulgaria to reinforce surveillance along its northern frontier.
There were no casualties or damage to infrastructure, Bulgarian Prime Minister Rumen Radev said after an emergency meeting of the government’s Security Council.
The drone crossed into Bulgaria at about 8:10 a.m. local time and exploded in a sunflower field roughly 100 metres inside Bulgarian territory, near the former Kardam border checkpoint with Romania.
Bulgarian authorities said neither Bulgarian nor Romanian radar systems had detected the aircraft before the explosion.
Radev said Romanian border police had registered the sound of the drone, while Bulgarian officers in the General Toshevo area heard a powerful explosion and quickly located the crash site.
The incident occurred about 1,000 metres from a compressor station on the Trans-Balkan gas pipeline, a major energy route connecting Türkiye with countries further north.
Defence Ministry Points to ‘Maya’ Decoy Drone
Several hours after the incident, Bulgaria’s Defence Ministry said a preliminary examination of the wreckage suggested that the aircraft was most likely a “Maya” decoy drone, a type it said is widely used by the Ukrainian armed forces.
“At present, there is no reason to believe that the incident was intentional,” the ministry said.
Officials stressed that the assessment was preliminary and that further forensic examinations were required to establish the drone’s origin, flight path and circumstances surrounding the explosion.
Investigators will also examine the debris for traces of explosives and other materials.
The ministry’s statement does not establish that Ukraine launched the drone or that it deliberately entered Bulgarian territory. Bulgarian authorities have so far identified only the apparent type of aircraft.
Drone Carried Significant Explosive Charge, Radev Says
Earlier in the day, Radev said the strength of the blast indicated that the drone had carried a substantial amount of explosives.
“This was not a toy drone. It was a larger aircraft,” he said.
Because the drone was badly damaged in the explosion, authorities initially could not determine whether it was civilian or military.
Police, border guards, Defence Ministry specialists and counterterrorism teams were deployed to the site, which was sealed off while investigators collected evidence.
Bulgaria Moves Anti-Drone Assets North
Radev said Bulgaria would redeploy border police drone-detection and counter-drone equipment from its border with Türkiye towards the Romanian frontier.
The decision follows a series of drone incidents along NATO’s eastern flank.
Romania has previously reported multiple incursions linked to the war in neighbouring Ukraine, including drones crashing on Romanian territory.
Radev said Bulgaria had already strengthened radar coverage in the region after three Shahed-type drones were downed in Romania two weeks earlier.
He acknowledged, however, that small drones flying at low altitude remain difficult to detect because of gaps in radar coverage.
Bulgaria has for years been working to acquire modern three-dimensional radar systems, and the Defence Ministry is seeking to accelerate that procurement, Radev said.
NATO to Discuss the Incident
Bulgaria plans to raise Saturday’s incident at a meeting of the North Atlantic Council early next week.
Romania is expected to brief allies on recent drone incidents on its territory, while Poland will present information concerning ballistic missile incidents, Radev said.
The Bulgarian government said it would continue monitoring the situation and reinforce surveillance.
The incident has also triggered domestic political debate. The opposition GERB party called for a rapid investigation into the drone’s origin, route and whether the incursion was accidental or deliberate.
GERB said the event demonstrated the need for a coordinated European and NATO anti-drone defence system along the alliance’s eastern flank, from the Baltic to the Black Sea.
For Bulgaria, the unanswered question is no longer whether a drone entered its airspace — authorities have confirmed that it did — but who launched it, where it was headed and why it exploded so close to strategically important energy infrastructure.