China has laid the blame solely on the US over the gaffe that resulted in US President Barack Obama being forced to disembark from his plane through a small metal stairway instead of the customary red-carpet staircase that visiting state leaders are usually given. A Chinese foreign ministry official refuted media claims that China had deliberately snubbed Obama when he exited the Air Force One through the back stairway without the red carpet. The official said it would not be of any good to China to treat Obama rudely.