KYIV, April 25 -- Britain's Prince Harry yesterday visited deminers from the HALO Trust charity - made famous by his mother, Princess Diana - near the Ukrainian town of Bucha, where he tested how drones and AI-powered robots are transforming mine-clearance work.

Russian troops occupied the Kyiv suburb for a month after they invaded in February 2022, killing hundreds of civilians in a massacre that was met with outrage and a hardening of support for Kyiv.

When Moscow's forces withdrew they left large areas around the town contaminated with unexploded missiles, bombs and grenades.

HALO said most of the land there is now safe after four years of work clearing the area.

"It's amazing to see how technology is transforming the work of the H...