CNN has confirmed the authenticity of the video, which was circulating on social media Thursday. It's not known when the video was taken.
The footage shows one of the six turbine rooms on the western side of the nuclear plant, located in the southeastern city of Enerhodar. Each turbine hall is connected and built into a large building that houses a nuclear reactor.
The vehicles, which seem to be Russian military trucks, are located in the far western edge of the building on the ground floor, just over 400 feet 130 meters from the reactor.
It is not clear if the pallets and tent-like structures are part of the Russian military or related to power plant operations. A new video shows Russian military vehicles parked in a turbine hall, connected to a nuclear reactor at the Zaporizhzhia nuclear power plant. Moscow previously said that the only military equipment at the plant is related to guard duties. On Thursday, the Russian Ministry of Defense claimed that satellite imagery shows that weapons, particularly heavy ones, are not placed on the territory of the station. CNN reached out to the Russian Defense Ministry for comment about what is inside and around military vehicles in the turbine room, but did not immediately receive a response. Ukraine and Russia have accused each other of threatening nuclear terrorism, particularly around the plant. Kyiv has repeatedly accused Russian forces of storing heavy weaponry inside the complex and using it as cover to launch attacks, knowing that Ukraine can't return fire without damaging one of the plant's reactors. Moscow, however, has claimed Ukrainian troops are targeting the site. On Monday, the chairman of Ukraine's state nuclear power company, Petro Kotin, said Russia was storing 14 units of heavy military equipment in the first power unit and six vehicles in the second engine room. Europe's largest nuclear plant is under threat. Satellite imagery of the complex provided by Planet Labs shows that Russian military vehicles have not been able to leave the plant since July 24, according to satellite imagery of the complex. It's not clear whether Russian military trucks are being stored inside the turbine room or if they are using it as cover after a Ukrainian military strike on July 19. Russian military personnel were targeted in three tents just under 1,000 feet more than 300 meters from one of the nuclear reactors. The biggest nuclear power plant in Europe, the Zaporizhzhia, has been under Russian control since March. The United Nations' nuclear watchdog and world leaders have been concerned about the specter of nuclear disaster after attacks at the complex, which have ramped up due to fighting flares in Ukraine's south. Nuclear experts are keen to defuse some of the more alarmist warnings, saying that the main threat is closest to the plant itself and doesn't justify Europe-wide alerts. Experts are particularly wary of any comparisons to the 1986 Chernobyl disaster, the worst nuclear accident they have ever had, and they said it was incredibly unlikely. In recent weeks, shellfire at the plant has damaged a dry storage facility where casks of spent nuclear fuel are kept as well as radiation monitoring detectors, according to Energoatom, Ukraine's state-owned nuclear power company. On August 5, several explosions near the electrical switchboard caused a power shutdown and a reactor was disconnected from the electrical grid, according to the UN Security CouncilUN Security Council. According to the UN Security CouncilUN Security Council, the situation had deteriorated to the point of alarming.