By Louis Charbonneau and Avi Ohayon UNITED NATIONS/EIN ZIVAN Golan Heights (Reuters) - The head of the Fijian army said on Sunday negotiations for the release of 44 soldiers abducted by an al Qaeda-linked group on the Syrian side of the Golan Heights were being pursued as the United Nations said it had ** word on the troops' whereabouts. The U.N. peacekeepers from Fiji were seized by Islamist militants on Thursday, one of several groups attacked in the volatile frontier between Syria and Israel. U.N. officials told Reuters on condition of a**nymity that they were **w treating it as a case of kidnapping.