The NASA on Monday termed as a “terrible thing” India’s shooting down of one of its satellites that has created about 400 pieces of orbital debris, endangering the International Space Station (ISS).

NASA Administrator Jim Bridenstine said about 60 pieces have been tracked so far and out of which 24 are going above the apogee of the ISS.

“That is a terrible, terrible thing to create an event that sends debris and an apogee that goes above the international space station. That kind of activity is not compatible with the future of human spaceflight that we need to see have happened,” he said at a NASA townhall here.