Sudan has accused the US administration of being prejudiced towards the country. A Ministry of Foreign Affairs spokesperson, Ambassador Al-Obeid Ahmed Marawah, said: "Washington continues to be prejudiced against Sudan," and announced in a statement Friday evening to 'Arabstoday' that "US claims of an air strike targeting the states of South Kordofan and Blue Nile are false." "This information is fabricated by some parties...in order to allege that the region is heading towards a humanitarian crisis," said Marawah. The ambassador said the region was not an "operation region" as it was besieged by the Sudanese army who controlled it and cut off supplies to the rebels, hence "the claims of aerial bombardments operations are false".White House press secretary Jay Carney expressed his "serious concerns" regarding the battles, asking Khartoum to "ensure humanitarian access to the affected". Carney said in an official statement that his country "strongly condemns" the attacks launched by the Sudanese Armed Forces in South Kordofan and Blue Nile against civilians. "These air strikes against civilians are unjustifiable and unacceptable," he added, describing them as a violation of international laws. Sudanese Foreign Affairs Minister Ali Ahmad Karti said that Khartoum would not allow the delivery of food and aid to rebels under any circumstances, and that the aim of talks on humanitarian problems in the states of South Kordofan and Blue Nile was to deliver food to the rebels. Meanwhile, Karti stressed that "he who rebels against Khartoum has to bear the consequences of his act". However the Minister of Foreign Affairs in a radio interview said in a sharp tone: "Let's see whether Washington is going to impose the delivery of food to rebels without our consent or not, in spite of our firm rejection of any interference under the humanitarian pretext in favour of rebels and rebellion in South Kordofan and Blue Nile."