Lufthansa has extended the suspension of planned flights to and from Tehran due to security concerns, the German flagship carrier said early on Friday. “Due to the current situation, Lufthansa is suspending its flights to and from Tehran up to and including Saturday, 13 April, after careful evaluation,” a company spokesperson said. The safety of passengers and crews is always the top priority, the statement said. Lufthansa does not rely solely on government assessments, but evaluates the current security situation itself and then makes its own decisions, it added. Lufthansa had already announc…