Qatar's Ministry of Interior said the Ras Laffan plant explosion was caused by a "technical accident".

Iranian sources said on the 22nd that negotiations between Iran and the United States in Switzerland began on the 21st at about 15:00 local time and ran roughly 1.5 hours before being recessed for 30 minutes for internal consultations. Iran's delegation refused to resume after Trump made threatening remarks. Qatar and Pakistan continue mediating and intermediaries are still relaying messages; mediation is ongoing but no final agreement has been reached. Iran lodged a formal protest over U.S. breaches of commitments, citing a specific violation of Article 1 of the memorandum of understanding (MoU).

Iran's deputy foreign minister Karibabadi led a delegation to Switzerland on Monday for technical talks to discuss mechanisms to implement the US-Iran memorandum of understanding and to establish related technical working groups, the Iranian Students' News Agency reported.