Negotiations over Iran's nuclear program remain stalled following strikes by Israel and the United States. The bombing of key nuclear facilities has deepened Iran's mistrust of Washington and reinforced its resolve to continue enrichment.

US president has upped rhetoric as Iran maintains it will push forward with nuclear programme after US strikes.

The U.S. wants Iran to end all uranium enrichment. The European nations have yet to make clear their position. The JCPOA limited Iran to enriching uranium up to 3.67% purity -- sufficient for civilian nuclear power purposes but below the 90% purity needed for use in a weapon.