During his visit to the U.K. on Monday, President Donald Trump expressed further frustration with Russian President Vladimir Putin.

The last lifelines into besieged towns along the eastern frontline for Ukrainian troops, caught in a web of increasingly lethal and sophisticated drone warfare, rely on a technology millennia old: a fishing net.

The same data networks that enable phone apps and web surfing help drones navigate, so officials are imposing daily, patchwork shutdowns. The actions can be very disruptive to daily life.

Russia launched a drone and missile attack on a Ukrainian hospital and prison on Monday night, killing at least 21 people and wounding 80 others. Russia’s assault on Ukraine included two Iskander-M ballistic missiles and 37 Shahed-type drones,

DONETSK REGION (Reuters) -For months, Ukraine has picked off Russian soldiers by the thousand around the frontline city of Pokrovsk, using small drones armed with bombs to tie down a numerically superior force.

Russia and Ukraine traded aerial attacks overnight, resulting in two deaths in each country and many people wounded on both sides, according to officials. On the battlefield, the Russian military said Saturday that it seized the village of Zelenyi Hai in the eastern Donetsk region that Moscow illegally annexed but only partially controls,

Russia's Defence Ministry said on Saturday its forces had captured two more villages in eastern Ukraine, including one in Dnipropetrovsk region where Moscow says its troops have begun to make advances.

You know, everything you tell us will be used against you,” the interviewer on Russian TV warns Timur Shagivaleev, the man behind one of the country’s biggest drone factories.