This was reported by RIA Novosti. 

According to the source, Moscow does not consider the request justified, since Russia's military activities "are not unusual and do not give grounds for launching a mechanism to reduce military danger under the Vienna Document 2011 on confidence and security building measures."

“We consider the Ukrainian request as a diversionary maneuver from Kiev’s own significant unusual military activity, which is conducting daily shelling of Donbass,” the source said.

Earlier, Ukrainian Foreign Minister Dmitry Kuleba said that Ukraine was waiting for a response from Russia within 48 hours with information about areas of military activity and the number of troops on the border.

The minister clarified that in the absence of a response or the provision of insufficient or inadequate information, Ukraine will turn to Russia and other states parties to the Vienna Document to convene an emergency meeting, at which Moscow “will have to provide an explanation.”