Video footage from Kharkiv, Ukraine, circulating on social media shows the Kharkiv Institute of Physics and Technology on fire after a Russian rocket attack, writes the Newsweek.

The institute has nuclear material and a reactor on its site in the northeastern city of Kharkiv, increasing fears of a potential "large-scale ecological disaster," according to The Independent.

News of the airstrike on the research center adds to mounting fears about the potential dangers to Ukrainian nuclear power plants, such as Chernobyl and Zaporizhzhia, that have been taken over by Russian forces as the invasion of Ukraine enters its third week.