![Jen Psaki, White House press secretary, speaks during a news conference in the James S. Brady Press Briefing Room at the White House in Washington, D.C., U.S., on Tuesday, April 13, 2021. U.S. health officials called for an immediate pause in using Johnson & Johnson's single-dose Covid-19 vaccine after six women who received it developed a rare and severe form of blood clotting. Photographer: Leigh Vogel/UPI/Bloomberg](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/Q2NXEYSI3CAOHJQX3OYD4UBYL4.jpg?smart=true&auth=3df248b16a03ee28b5093cf48108afcecc399257602a6f6354712edbe662771b&width=400&height=225)
White House Press Secretary Jen Psaki said the US is taking Iran's 'provocative' announcement 'seriously'. UPI/Bloomberg
White House Press Secretary Jen Psaki said the US is taking Iran's 'provocative' announcement 'seriously'. UPI/Bloomberg
White House criticises Iran’s ‘provocative’ uranium enrichment announcement
US says it raises questions about Iran’s commitment to nuclear diplomacy