Iran enrichment increase serious escalation, harms diplomacy - German source

Iran's increase in the amount of uranium enriched to up to 60% purity is a serious escalation and worsens diplomatic efforts to resolve disputes over its nuclear programme, a German foreign ministry source said on Friday.

"This is a serious escalatory step by Iran, which we strongly condemn. It is obvious that such measures significantly worsen the framework for diplomatic efforts," the source said.