no-fly zone
The helicopters reportedly flew over Misrata, the third largest city in the country and located on the northwest coast of Libya, on Thursday and Friday, disguised as aid workers from the Red Cross to circumvent the 
, which was approved unanimously by the U.N. Security Council in March. The no-fly zone aims at making it impossible for Gaddafi loyalists to perform airstrikes on the rebels. 
Gaddafi loyalists allegedly using Red Cross helicopters to bomb rebel held city