Meanwhile, Israel launches a new wave of strikes at Tehran, with footage showing an explosion near a pro-establishment rally in the city.

The message attributed to Mojtaba Khamenei was read by a presenter on Iranian state TV. He has not been seen in public since succeeding his father.

Iran steps up retaliatory strikes on Israel and US targets in the UAE, Bahrain, Kuwait and Iraq, state media says, as Qatar reports more missile interceptions.

As artificial intelligence increases productivity, employees must prove they are more than just time on the clock.