DUBAI (Reuters) - Iran denied on Friday Nigerian allegations that it had trained militants arrested in Nigeria on charges of planning attacks on U.S. and Israeli targets there. Deputy Foreign Minister Hossein Amir-Abdollahian said such allegations were "made up as the result of the ill will of the enemies of the two countries' good relations", Iranian state television reported. "Iran and Nigeria have friendly and close relations and despite the vast efforts of the two countries' enemies in recent years relations and cooperations have always improved," he said. Nigeria's secret service said on Thursday it had arrested Abdullahi Mustapha Berende...