rtokens: U.N. officials said that a Kurdish rebel faction backed up by Iraqi tanks , heavy artillery and helicopters had taken control of half of the city after heavy fighting .
pos: IN DT NN MD JJ NN VB VBN IN JJ , " VBD DT NNP NNP NN .
tokens: In no way can Iraqi involvement be seen as helpful , " said a Foreign Office spokesman .
ltokens: " We condemn Iraqi involvement .