Two Russian missiles launched on Saturday flew “dangerously close” to a nuclear power plant in southern Ukraine, The Guardian reports, citing reports from the state body that manages the facility, Energoatom.

The Energoatom company, which manages the country’s nuclear power plants, reported that at 8:25 a.m. and 8:27 a.m. local time, two cruise missiles were recorded flying past Yuzhno-Ukrainian in the south of Ukraine in the Mykolaiv region.

On Saturday morning, the Ukrainian military said that four Kalibr missiles were launched from the Black Sea, and two were intercepted by air defense systems.

Again, there is a high threat of damage to the reactor with possible consequences – a nuclear disaster,” Energoatom reported.

“This is another act of nuclear terrorism by the Russian Federation, which threatens the security of the whole world!”

The organization also called on the International Atomic Energy Agency to take “all possible measures to stop Russian nuclear terrorism” and to establish a “no-fly zone over all nuclear facilities in Ukraine.”