US blames Russia for Syria convoy attack; Moscow blames 'terrorists'

The US has reached the preliminary conclusion that Russian warplanes bombed an aid convoy and warehouse belonging to the Syrian Arab Red Crescent, two US officials told CNN.

"All the evidence we have points to that conclusion," one of the officials said.

However, the White House has taken the position that Russia is responsible for the strike, regardless of whether it was their planes -- or the Syrian regime's -- that carried out th attack

The aid convoy was hit Monday night in the area of Urum al-Kubra, west of Aleppo, prompting the United Nations to halt its aid operations in Syria.

"All of our information indicates clearly that this was an airstrike. That means there only could have been two entities responsible," Deputy National Security Adviser Ben Rhodes said Tuesday night, naming Moscow and the Syrian regime. He didn't specify which country's planes carried out the strike.

"We hold the Russian government responsible for airstrikes in this airspace given their commitment under the cessation of hostilities was to ground air operations where humanitarian assistance was flowing," Rhodes said, referring to the terms of a recent ceasefire brokered between the US and Russia.