Christian Fraser reporting from Crimea. The White House said that a Russian intervention in Ukraine would be a grave mistake. A spokesman said US officials had stressed the territorial integrity of Ukraine should be respected. The UN Security Council is meeting now to discuss the crisis. Nick Bryant is at the UN in New York. ____________________________________________________Why, because Russia will block any kind of statement that other members of the security council wanted to push through. The meeting was called at the request of Ukraine, they are worried about their territorial sovereignty and their territorial integrity and those concerns are shared clearly by a number of Security Council members. Nick Bryant. World News from the BBC. 白宫表示,俄罗斯介入乌克兰事务是重大的错误.一名发言人表示,美方官员强调应该尊重乌克兰的领土完整.联合国安理会正在召开会议对这场危机进行讨论.尼克`布莱恩特在纽约联合国总部报道. __________________________________为什么呢?因为俄罗斯一定会阻挠安理会其他成员国通过想要的任何声明.这次会议是在乌克兰的要求下召开的,他们为自己的领土主权和领土完整担忧.很明显,安理会一些成员国也存在同样的担忧.