Experts said it was unlikely that the judges would turn down Kyiv's request, at least when it came to its urgent requests.

The four suspects are accused of launching the missile that hit the plane over war-torn eastern Ukraine, killing 298 people. 

Four suspects are being tried in absentia for launching a BUK missile that hit flight MH17 over war-torn eastern Ukraine in 2014.

Moscow has 10 days to respond to the questions "on the use of a chemical weapon on its territory."