Malaysian Transport Minister Liow Tiong Lai said Friday evening that the crash site of MH17 was still not safe, and Malaysia continued to require a safe and unrestricted access for the investigators to the crash site.

Liow made the remarks when arriving at the KL International Airport from the Netherlands after taking a trip to Amsterdam and the Ukrainian capital of Kiev.

He said they did not want the evidence to be tampered with and required full access to the crash site. "I would like to thank the OSCE (Organization for Security and Co-operation in Europe) for giving us the assistance and arranging a special path for our investigators to access the site," he said.

Liow noted they had completed the first phase of the investigation, which was the collection of data from the crash site. More Malaysian investigators would be sent to the crash site and Hilversum Military Hospital where the crash victims' bodies were being examined by an international investigation team, he added.

Malaysia Airlines flight MH17, a Boeing 777 carrying 298 passengers and crew, crashed in eastern Ukraine, where pro- independence militants are fighting government forces, on July 17 on its way from Amsterdam to Kuala Lumpur, killing all on board.