The number of UAVs used in the Russian attack reached a record high.

Ukrainian Armed Forces Air Force spokesperson Ignat stated on July 4th local time that Russian forces used nearly 550 pieces of airborne weapons to attack Ukraine on that day, including more than 330 attack drones. This is the highest number of drones used by Russian forces in a single attack. Due to high levels of air pollutants, the Ukrainian Ministry of Health urged Kyiv residents to close their windows on July 4th local time. The sky over Kyiv was filled with thick smoke from fires caused by the large-scale attacks launched by Russian forces on Kyiv and the Kyiv region on the 4th. Witnesses reported that there were more than 20 fires in the city of Kyiv. A representative of the "Ukrainian Railways" company stated that the urban railway infrastructure suffered severe damage. Currently, the Russian side has not responded to this.