Iran metal exports may be harder to sanction than oil, experts say

Iran, hard hit by US sanctions on its oil sales, now faces restrictions on metals exports -- but industry insiders say foreign income from mining and steel will be harder to curb. Tensions are soaring a year after Washington withdrew from a multilateral 2015 deal over Iran's nuclear programme. A US aircraft strike group is heading for the Gulf and Tehran has said it will stop abiding by some restrictions on its nuclear activities.