Ukraine's General Staff Confirms Strike on Orel Missile-Parts Plant as Drones Halt Flights at Four Moscow Airports

Since Moscow's mayor said 630 drones were headed toward the Moscow region overnight on Oct. 21-22, Ukraine's long-range campaign has produced two more incidents in 48 hours: a strike on a Russian electronics plant in Orel and a drone raid that shut Moscow's airports.

Orel plant hit

Ukraine's General Staff said today that the main production building of Proton-Electrotex in Orel was struck on Oct. 23. The city sits about 160 kilometers (100 miles) from the Ukrainian border.

"This complicates the production of components for cruise and ballistic missiles, with which the enemy hits Ukrainian cities," the General Staff said in its statement.

The plant makes semiconductor devices, LEDs and electronic components for industrial and specialized equipment. Russian outlet ASTRA, citing its open-source analysis, identified the site as the Proton plant and said residents heard at least four explosions. ASTRA reported that the plant supplies parts for S-71 Kover cruise missiles, 9M723 Iskander-M ballistic missiles and Pantsir-S1 air-defense systems. That supply claim is the outlet's own; Russia has not commented on it.

Oryol Oblast Governor Andrey Klychkov confirmed that an enterprise was targeted. He said three people died. Local officials clarified that the three were not inside the Proton-Electrotex building but died in a fire caused by the attack. Whether that fire spread from the plant or started elsewhere has not been spelled out.

Eyewitness video shows large explosions and black smoke over the city.

Moscow airports shut

On the afternoon of Oct. 23, Russia's civil aviation authority, Rosaviatsiya, announced restrictions on arrivals and departures at Sheremetyevo, Domodedovo, Vnukovo and Zhukovsky at 2:05 p.m. local time. It said the limits were "necessary to ensure flight safety."

Moscow Mayor Sergey Sobyanin said 17 drones were shot down on their way to the city. Drone alerts went out in several suburbs, including Reutov, Balashikha, Lyubertsy and the Kapotnya district of Moscow.

At Sheremetyevo, the airport declared an air raid alert and escorted passengers to shelters. Flight tracker FlightRadar24 counted 85 cancellations and 229 delays there over the day. Russian state news agency TASS reported the all-clear at 5 p.m. local time.

The IQ-quarter skyscraper in the Moscow City business district was also evacuated. The tower houses the Digital Development, Economic Development, and Industry and Trade ministries.

Ukraine had not commented on the Moscow raid as of the latest available reporting.

This was not the first such shutdown this month. Moscow airports closed for five to seven hours a week earlier, with more than 350 flights canceled or delayed and some inbound aircraft diverted to other cities.

The Oct. 21-22 barrage

Sobyanin said 630 drones flew toward the Moscow region between 20:30 on Oct. 21 and 04:00 on Oct. 22, and that 163 were neutralized on the approach to the capital. Two people were injured near Voronovo, in New Moscow.

Russian officials also reported damage elsewhere. Tula Governor Dmitry Milyaev said 70 drones were downed and homes were damaged in Tula and the Zaoksky district. Voronezh Governor Alexander Gusev reported 44 drones destroyed. In Lipetsk, Governor Igor Artamonov said a man born in 2001 was injured and that homes, apartment blocks and a polyclinic were damaged.

The Russian outlet Astra, analyzing eyewitness video, said an explosion hit the 75th Arsenal military plant in Serpukhov, about 99 kilometers south of Moscow. Residents claimed in local chats that at least three missiles struck the area. Neither the missile count nor the damage has been independently verified, and no Russian official had confirmed the blast as of the morning of Oct. 22.

The 75th Arsenal falls under Russia's Main Missile and Artillery Directorate. Rostec, the state defense conglomerate, says the facility has repaired Buk-M1, Buk-M2 and S-300V air-defense systems. Both Ukraine and the U.S. Treasury have sanctioned it.

Pressure on Russian air defenses

Russia's account of these nights centers on interceptions: Sobyanin and the regional governors describe most drones destroyed and damage limited to homes and infrastructure. They have not acknowledged military losses at the plants Ukraine names.

Ukraine's Defense Ministry said that in September its units hit more Russian air-defense systems and radars than in any month since 2024. Analyst Oleksandr Kovalenko counted 76 destroyed with days of the month still left, and argued Russia cannot replace such losses. If the Serpukhov site really does repair Buk and S-300 systems, as Ukrainian outlet Militarnyi says, its loss would add to that strain.

A White House announcement of a separate diplomatic effort to ease conditions for civilians in Ukraine came the same day. Its details have not been laid out.

The open question is damage. Russia has confirmed neither the Serpukhov hit nor any impact on missile-component output in Orel, and satellite imagery of both sites would settle how much production was actually lost.