German Chancellor Friedrich Merz urged Iran's leadership to "truly enter talks" on Thursday, the eve of their planned negotiations with US envoys, saying there was a "great fear of military escalation in the region".
Speaking to reporters in the Qatari capital Doha, Merz said Iran had to "stop its nuclear program" and avoid "further military threats" to Israel and other countries in the region.
"Talks will therefore be intensified in the next hours," Merz said, adding that Germany was "co-ordinating closely" with the US.
Merz also responded to comments from Iranian Foreign Minister Abbas Araghchi in which he attacked Merz's "political naivety and distasteful character", recalling that Merz had described Israel's June 2025 attack on Iran as doing the "dirty work... for all of us".
Araghchi called Germany an "engine of regression" in a post on the X platform, formerly known as Twitter.
"I have seen this tweet and can only say it seems to be a sign of great nervousness and insecurity," Merz said.