The United States said it was concerned about reports that Russia is moving more military equipment into Syria to bolster President Bashar al-Assad

“We've been concerned about reports of Russia moving materiel into Syria,"Reuters quotes Ben Rhodes, deputy national security adviser to President Barack Obama, as saying at a news briefing in Saudi Arabia

Having said that, Rhodes did not specify what military equipment Russia is supplying nor the source he obtained the information from.

According to Rhodes, the US does not support forceful resolution of the conflict in Syria. He went on to say that Russia risks facing negative consequences by resuming supplies of military equipment to Syria.

"We think it would be negative for Russia to move additional military equipment or personnel into Syria. We believe that our efforts are best focused on supporting the diplomatic process," Rhodes added.

Reuters earlier reported Russian military being supplied to Syria on a large scale despite the withdrawal of the bulk of the Russian troops from Syria announced y Russian President Vladimir Putin.