rtokens: Officials say the minefields present an obstacle to the security forces , " it said .
pos: DT NN , TO VB VBN IN NN IN JJ NNS , VBD VBN IN NNP IN NNP . "
tokens: The report , to be debated in parliament in coming weeks , was seen by Reuters on Friday . "
ltokens: " It is not known exactly where the mines have been sown because a minefield chart cannot be found , " the commission said in a report on border protection .