International monitors deployed in rebel-held eastern Ukraine have reported seeing a large convoy of military vehicles and personnel moving westward from the border.
The revelation was made by the deputy head of the Organisation for Security and Cooperation in Europe.
“The OSCE special monitoring has witnessed and observed at three locations columns on the territory controlled by the rebels,” said Alexander Hug at a news conference in Donestsk.
“The OSCE special monitoring mission cannot verify or comment upon where these columns origin from,” he added.
Ukraine and the West say the new columns of unmarked soldiers and weapons seen in the rebel-held territory this week are Russian.
Russia denies sending weapons and soldiers to eastern Ukraine and says the reports are part of an information war against the Kremlin.