DHAKA: Nato says it has observed a ‘significant’ withdrawal of Russian troops from eastern Ukraine, but adds that some forces still remain there.

Lt Col Jay Janzen says it is difficult to determine the number of soldiers in Ukraine, as pro-Russian separatists control several border crossings, reports the BBC.

Moscow denies arming the rebels and sending Russian troops to the Donetsk and Luhansk regions.

More than 3,200 people have been killed in clashes that erupted in April.

BDST: 1855 HRS, SEP 24, 2014