A Mil Mi-8 helicopter belonging to the UN crashed Sunday afternoon in central Afghanistan, injuring a number of UN employees.
At least 16 people were killed Monday when a United Nations aircraft crashed in the Democratic Republic of the Congo, CNN reported.
Turkey on Wednesday seized the cargo of an Iranian plane which was en route to Syria for violating United Nations sanctions.
Libyan authorities have reportedly closed civilian airports, including Tripoli International Airport, after the United Nations Security Council approved a resolution to impose a no-fly zone on Libya.
Passenger and freight air traffic grew substantially in 2010 as positive economic prospects worldwide overshadowed the depressed levels of 2009 caused by the global financial crisis, according to United Nations report.