The investigators have left Ukraine and will resume their probe in the Netherlands, Wim van der Weegen, spokesman for the Dutch Safety Board, or OVV, told AFP, noting: "We have sufficient information to compile a preliminary report."
The OVV said earlier in a statement that it would only investigate the cause of the crash, with no intention of finding a party to blame for the incident. The preliminary report will contain information from various sources, including black boxes, transcripts of interactions between the crew and flight dispatchers and satellite imagery.
Russia and the West have traded accusations in recent weeks about who is to blame for the crash. While western politicians have pointed fingers at pro-Russian insurgents, President Vladimir Putin said that the Ukrainian leadership is culpable, as it prolonged the conflict that was the ultimate cause of the crash.
The preparation of the final report will take several months.