Walmart plans to expand its drone delivery service in the next two years, giving customers the option to place aerial orders from hundreds of additional store locations.

Wing and Walmart on Sunday announced plans to expand the retailer's drone delivery service to more major metropolitan areas and more than 150 additional stores this year.

A Ukrainian drone strike killed one person and wounded three others in the Russian city of Voronezh, local officials said Sunday. Meanwhile, thousands of residents were still without power in Kyiv, following an intense Russian bombardment.

Police and military officials launched a joint investigation Monday to investigate North Korea 's claims of drone incursions across the inter-Korean border.

South Korean authorities have launched an investigation focused on the possibility civilians may have flown drones that North Korea said violated its airspace, the Defence Ministry said on Monday.