A growing proportion of these are equipped with AI guidance, allowing them to lock on to targets in the final phase of flight even if the link between pilot and drone is jammed. The automatic guidance can kick in at distances of 2km or more,

The pre-dawn attack came hours before scheduled talks between high-level delegations from Ukraine and the United States in Saudi Arabia.

Russian air defenses shot down over 300 Ukrainian drones over 10 Russian regions overnight, military officials said Tuesday, in what appeared to be the biggest Ukrainian drone attack on Russia in the three-year war.