The Ukrainian army is constantly shelling the Malaysian Boeing's crash site in Donbas, hindering full-scale work, Russian President Vladimir Putin told Malaysian Prime Minister Najib Razak.

"It is not them [the militia] but the opposite side that is constantly shelling this plot of land and hindering thorough work at the crash site. But, anyway, we welcome the final full-scale involvement of Malaysian specialists in this inquiry rather than just the activity of the so-called technical commission. I am sure that your specialists will make a contribution to the comprehensive investigation of this tragedy," the Russian president said.