Ukrainian President Volodymyr Zelenskyy in an exclusive interview with ABC "World News Tonight" anchor David Muir in Kyiv accused the Russian military of using the massive Zaporizhzhia nuclear plant as a "weapon" in Moscow's invasion.

"You see, they occupied our nuclear station, six blocks. The biggest in Europe. It means six Chernobyls; it means the biggest danger in Europe. So, they occupied it. So that is-- means that they use nuclear weapon. That is [a] nuclear weapon," Zelenskyy told Muir from the presidential office.

"There shouldn't be any military personnel. There shouldn't be any military equipment on the territory. And there shouldn't be the workers of nuclear power plant who are-- surrounded by people with firearms," Zelenskyy added.

You can watch more of David Muir's full interview with President Volodymyr Zelenskyy on ABC's "World News Tonight" and "Good Morning America" tomorrow

Moscow and Kyiv have traded accusations over who is responsible for the shelling at and around the plant. Russian forces are currently occupying the site, though Ukrainian workers are still operating it.

Power to the plant has at times gone out due to the shelling, and two of its six reactors are operating from just one remaining power line. Power outages threaten the plant's cooling systems, which are key to preventing a meltdown.