IAEA says construction activity observed at Iran's Pickaxe Mountain

The chief of the United Nations nuclear watchdog says it has observed construction activity at Pickaxe Mountain in Iran’s Isfahan province, a heavily fortified site suspected of housing nuclear facilities. The International Atomic Energy Agency (IAEA) has yet to inspect the tunnel complex’s interior, but remote imagery has indicated new movement at the site, IAEA Director General Rafael Grossi tells Bloomberg Television.