China’s new high-speed maneuvering warhead is a “great concern” because it appears designed for use with both nuclear and conventional Chinese military forces, a Pentagon intelligence official said Thursday.

Lee Fuell, a technical intelligence specialist with the Air Force National Air and Space Intelligence Center, said during a congressional China commission hearing the recently tested hypersonic glide vehicle “is basically a ballistic missile-launched system that gets the target—or gets the payload fast and high, pitches over, dives to hypersonic speed, and then basically just glides to the target.”

“At this point, we think that’s associated with their nuclear deterrent forces,” Fuell said. “Of great concern would be if they were to apply the same technology and capability with a conventional warhead or even just without a warhead because of the kinetic energy that it has.”