Al Qaeda leader Ayman al-Zawahri has been killed by a US airstrike in Afghanistan, according to US media reports.
US president Joe Biden is set to deliver an address to the nation at 12.30am UK time.
A senior official in his administration said: “Over the weekend, the United States conducted a counterterrorism operation against a significant Al Qaeda target in Afghanistan.
“The operation was successful and there were no civilian casualties.”