Four people died in a helicopter crash near the north-eastern Romanian city of Iasi, authorities said on Monday. The helicopter, which belonged to the Interior Ministry, was carrying a medical team when it crashed a few minutes after taking off from Iasi airport, officials said. "It happened during a routine flight which takes place every morning," Radu Prisacaru, head of the county of Iasi, told Realitatea TV private television station. Authorities launched an investigation into the accident, in which everyone on board -- a doctor, nurse, pilot and co-pilot -- were killed.