National Assembly President Prof. Ognian Gerdjikov sent lettergrams of condolence to the Minister of Interior Georgi Petkanov and to the Minister of Defence Nikolay Svinarov on the tragic incident with a military helicopter this morning. Four died when the helicopter crashed while trying to put out a forest fire in the Razlog area, Southwestern Bulgaria. Three of the dead were crewmembers and one was a fire fighter who boarded the helicopter.