Technology

Four people have been arrested by police investigating cyber attacks targeting M&S, Co-op and Harrods.

A robot has performed realistic surgery on its own with 100% accuracy, researchers have announced.

Researchers say they have found a "powerful double weapon" that could help cancer patients keep their hair during chemotherapy.

An extra 263 Londoners likely died in the recent heatwave, according to stark new estimates.

South West Water has agreed to pay a £24m penalty for wastewater spillages, the water regulator said.