A Ukrainian drone entered Bulgarian airspace from Romania on Saturday and exploded on Bulgarian territory, Bulgarian officials said. The device detonated about 1,000 metres from a compressor station on the cross‑Balkan gas pipeline, directly threatening critical energy infrastructure. Bulgaria’s defence ministry said wreckage points to a weapon type widely used by the Ukrainian military. Prime Minister Rumen Radev said the explosive payload was substantial. Bulgaria summoned the Ukrainian ambass

A Ukrainian drone entered Bulgarian airspace from Romania on Saturday and exploded on Bulgarian territory, Bulgarian officials said. The device detonated about 1,000 metres from a compressor station on the cross‑Balkan gas pipeline, directly threatening critical energy infrastructure. Bulgaria’s defence ministry said wreckage points to a weapon type widely used by the Ukrainian military. Prime Minister Rumen Radev said the explosive payload was substantial. Bulgaria summoned the Ukrainian ambassador and has scheduled a meeting for Monday; officials said the incident so far appears not to have been deliberate.