India, April 16 -- The head of the UN's nuclear watchdog said on Wednesday that "very detailed" measures to verify Iran's nuclear activities must be included in a potential US-Iran agreement to end their war in the West Asia.

International Atomic Energy Agency (IAEA) Director General Rafael Grossi stressed the need for the thorough verification regime for Iran's nuclear programme, as US President Donald Trump said on Tuesday that a second round of talks with Iran could happen over the next two days.

The Trump administration has said that preventing Iran from gaining a nuclear weapon is a key war aim. Iran has previously said it isn't developing such weapons but rejected limits on its nuclear programme.

Last weekend in Pakistan, an init...