North Korea continues to maintain a national program for biological weapons that has likely developed bacteria, viruses and toxins for military campaigns, the U.S. State Department assesses in a new report published Tuesday.

The annual Adherence to and Compliance with Arms Control, Nonproliferation, and Disarmament Agreements and Commitments report also states that Pyongyang continues to produce weapons-grade fissile material such as plutonium and likely uranium.

“Pyongyang probably is capable of weaponizing biological weapons agents with unconventional systems such as sprayers and poison pen injection devices, which have been deployed by North Korea for delivery of chemical weapons and could be