North Korea may begin testing an “improved” intercontinental ballistic missile (ICBM) design in the “near future,” U.S. Air Force General Glen VanHerck said on Tuesday, citing new capabilities revealed at a military parade last October.

His warning, issued in a written statement provided to the Senate Armed Services Committee, comes amid U.S. intelligence the same day about the possibility of North Korea preparing to conduct its first weapons test since President Joe Biden took office.

“In October 2020, North Korea unveiled a new ICBM considerably larger and presumably more capable than the systems they tested in 2017,” VanHerck wrote, citing