Heads of global aviation firms will meet today to discuss potential changes to airspace plans following the downing of Malaysia Airlines flight MH17 over east Ukraine.
The meeting, hosted by the International Civil Aviation Organization (ICAO), is likely to hear calls for wider international powers to intervene when a country fails to monitor threats to its airspace.
The Malaysia Airlines crash occurred after Ukraine left open air corridors that lay within the range of the missile blamed for destroying the jet.
Airlines, represented by International Air Transport Association, will tell the meeting they urgently need improved access to "neutral information" to help them make decisions on where to fly, an industry source said.
"Some countries will never, ever say there is a problem with their airspace even if there really is a problem with their airspace," the source added. "This does not make it easy for airlines."
The mother of the three Australian children killed on flight MH17 told a memorial service her "arms would always be reaching for them."
A woman has apparently posted pictures of herself on social media with mascara looted from the Malaysian Airlines flight MH17 crash site.
A large section of plane wreckage and everyday carry-on items like chocolates remain scattered among the wild flowers at the crash site.