Washington will not accept enrichment of uranium in any deal with Tehran, U.S. Special Envoy to the Middle East Steve Witkoff said on Sunday.

“We have one very, very clear red line, and that is enrichment. We cannot allow even 1% of an enrichment capability,” Witkoff said in an interview with ABC’s “This Week.”

An indispensable condition for an accord with Iran from U.S. President Donald Trump’s perspective, the envoy continued, is that it “does not include enrichment. We cannot have that. Because enrichment enables weaponization. And we will not allow a bomb to get here.”