SOFIA, Bulgaria (AP) – A drone entered Bulgarian airspace on Saturday and exploded close to an international gas pipeline shortly after crossing the border from Romania. Bulgaria’s Prime Minister Rumen Radev said the drone exploded just after 5 a.m. about 100 meters (330 feet) inside Bulgarian territory. We continue to monitor the situation,” Radev said following a government emergency meeting. Radev said the unmanned aerial vehicle exploded around 200 meters from a Romanian compressor station, and about 1 kilometer (0.6 miles) from Bulgaria’s compressor station on the Trans-Balkan gas pipeline. Following this incident, we will also redeploy border police anti-drone detection and countermeasure capabilities from the border with Turkey to the border with Romania,” Radev said.