<p>Sofia: Two pilot instructors were killed when a two-seater aircraft crashed during a training flight in Bulgaria on Friday, ahead of a military air show scheduled the next day, the prime minister said.</p><p>Acting Prime Minister Dimitar Glavchev arrived at the crash scene at the Graf Ignatievo air base in central Bulgaria.</p><p>The crash occurred at 12:30 (0930 GMT) and killed two pilot instructors, Defence Minister Atanas Zapryanov said.</p>.El Salvador police chief and accused embezzler killed in helicopter crash. <p>The plane involved was an L-39ZA advanced training aircraft, the defence ministry said in a statement.</p><p>The ministry canceled the international air show planned to mark the 20th anniversary of Bulgaria’s admission to NATO on Saturday, and said an investigation of the accident was under way.</p><p>Earlier on Friday, Bulgarian President Rumen Radev, a former Bulgarian Air Force commander, co-piloted an F-16 aircraft at the same air base. </p>
<p>Sofia: Two pilot instructors were killed when a two-seater aircraft crashed during a training flight in Bulgaria on Friday, ahead of a military air show scheduled the next day, the prime minister said.</p><p>Acting Prime Minister Dimitar Glavchev arrived at the crash scene at the Graf Ignatievo air base in central Bulgaria.</p><p>The crash occurred at 12:30 (0930 GMT) and killed two pilot instructors, Defence Minister Atanas Zapryanov said.</p>.El Salvador police chief and accused embezzler killed in helicopter crash. <p>The plane involved was an L-39ZA advanced training aircraft, the defence ministry said in a statement.</p><p>The ministry canceled the international air show planned to mark the 20th anniversary of Bulgaria’s admission to NATO on Saturday, and said an investigation of the accident was under way.</p><p>Earlier on Friday, Bulgarian President Rumen Radev, a former Bulgarian Air Force commander, co-piloted an F-16 aircraft at the same air base. </p>