TEMPO.CO, Jakarta - US Secretary of State John Kerry has accused pro-Russia separatists of a "piecemeal" approach to the ceasefire agreement for eastern Ukraine, BBC News reported.
Speaking at the UN, he said the rebels were only withdrawing heavy weapons from the front line in selective areas.
Meanwhile Russian Foreign Minister Sergei Lavrov said there had been "tangible progress" with the truce.
Both Ukraine and the rebels say they are withdrawing heavy weapons in line with the deal made in Minsk last month.
Monitors from the OSCE security group have reported weapons movements on both sides but say it is too early to confirm a full withdrawal.
Mr Kerry and Mr Lavrov held talks on Monday as tensions remain high over the conflict. The fragile ceasefire is said to be broadly holding, despite some fighting in recent days.
BBC NEWS
