The World in Brief from The Economist

Iran’s foreign minister, Abbas Araghchi, said American mediators had not officially relayed their rejection of an Iranian offer of a seven-day ceasefire; British police detained five men on suspicion of preparing a terrorist act after a tip-off that three vans were heading towards RAF Fairford, an air base America uses to strike Iran.

Iran’s foreign minister said that only a negotiated solution could get America out of its “deadlock”. Abbas Araqchi’s social-media post came after Donald Trump rejected Iran’s offer of a seven-day ceasefire that could have reopened the Strait of Hormuz; A controversial march by members of Northern Ireland’s loyalist Orange Order will go ahead on Sunday after the High Court court reversed a ban.

America and China confirmed that they would establish a communications channel dedicated to AI incidents

America and China confirmed that they would establish a communications channel dedicated to AI incidents

OpenAI said that its artificial-intelligence agents may have hacked “dozens” of websites of international institutions, including governments, universities and public agencies; The Wall Street Journal reported that Donald Trump had rejected a seven-day ceasefire deal offered by Iran on Thursday.

ArcelorMittal said it was stopping production at Ukraine’s biggest steel plant

America’s Supreme Court allowed the Trump administration to continue using a broad database that lets states verify the citizenship of registered voters; Military leaders from Saudi Arabia, Turkey and Pakistan said they would hold an emergency meeting to discuss escalating attacks on Saudi Arabia by Iran-backed Houthi rebels.

Donald Trump met Xi Jinping at the White House, describing the talks as “great”, although the agenda was less substantial than the pomp. Also, Israel’s prime minister called his critics “phoney human-rights protesters” and defended Israel’s offensive in Gaza.