Relatives of those killed when flight MH17 was shot down over Ukraine
exactly a year ago joined emotional memorials as calls mounted for a
UN-backed tribunal to prosecute those responsible for the tragedy.
All 298 passengers and crew -- the majority of them Dutch -- died on
July 17 last year when the Malaysia Airlines Boeing 777, on a flight
from Amsterdam to Kuala Lumpur, was downed over rebel-held east Ukraine
during heavy fighting between Kiev's armed forces and pro-Russian
separatists.