DONETSK, Ukraine (CNN) -- Malaysia has secured an agreement with pro-Russian separatists in Ukraine to allow a group of international police to enter the MH17 crash area to provide protection for international crash investigators, Malaysian Prime Minister Najib Razak's office said Sunday.
"I am deeply concerned that international investigators have been unable to properly deploy to the crash site because of the volatile security situation," Razak's office said.
"It is imperative that we deploy a full team of investigators to ensure that all the human remains are removed from the site, identified and repatriated. Everyone who was on board MH17 must be afforded proper dignity and respect."
More than a week after Malaysia Airlines Flight 17 went down in eastern Ukraine, Malaysian investigators have not yet been able to access the entire crash site, Razak said Saturday.
All 298 people aboard the plane died when it crashed on July 17. Of that number, 43 were Malaysian, including 15 crew and two infants, according to Malaysia Airlines.
The situation in the area where the plane crashed was deemed too unsafe on Sunday for Dutch investigators. A team of 30 forensic experts will remain in the city of Donetsk, which is about 75 kilometers (47 miles) from Hrabove. About 40 Dutch police officers are also in Donetsk.
The Organization for Security and Co-operation in Europe monitoring mission also considered it too dangerous to go to the crash site, Andrew Hug, deputy head of the OSCE team said.
Russia announced it had formed a team to join the investigation, state-run news agency Ria Novosti reported. It will be led by the deputy head of the Federal Air Transport Agency, Oleg Storchevoy.
Russia has continued to increase its military presence near its border with Ukraine, the National Defense and Security Council press office claimed. It said two convoys were spotted moving toward a Russian town near southeastern Ukraine.
Ukrainian forces are trying to encircle militants in Gorlivka and cut off their communication with Donetsk, the press office said.
CNN's Nick Paton Walsh in Donetsk, journalist Victoria Butenko in Kiev and Radina Gigova contributed to this report.
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