联合国官员称击落马航班机可能是战争罪

The U.N. high commissioner for human rights says the downing of Malaysia Airlines Flight 17 in rebel-held eastern Ukraine "may amount to a war crime." 

Pillay said every effort will be made to ensure that anyone committing serious violations of international law in the Ukraine conflict, "including war crimes" will be brought to justice, "no matter who they are." 

Meanwhile, fighting in the area where the plane crashed has forced a team of international investigators to abandon plans to gain access to the site for a second straight day. The team of Dutch and Australian experts said earlier Monday the group was renewing efforts to reach the site.

In another development, the U.S. State Department released satellite images Sunday showing what it says is proof that Russian forces are firing rockets and artillery across the border into eastern Ukraine.

The images, released in a four-page document, show what U.S. analysts say are multiple rocket launchers and artillery fire coming from Russian territory. Other images show impact craters near military positions in eastern Ukraine, where government forces are battling pro-Russian separatists.

Moscow has not commented on the pictures.