White supremacists discussed plans to weaponize coronavirus via “saliva,” a “spray bottle” or “laced items,” according to a weekly intelligence brief distributed by a federal law enforcement division on Feb. 17.

Federal investigators appeared to be monitoring the white nationalists’ communications on Telegram, an encrypted messaging app that has become popular with neo-Nazis. In the conversations, the white supremacists suggested targeting law enforcement agents and “nonwhite” people with attacks designed to infect them with the coronavirus.

“Violent extremists continue to make bioterrorism a popular topic among themselves,” reads the intelligence brief written by the Federal Protective Service, which covered the week of Feb. 17-24. “White Racially Motivated Violent Extremists have recently commented on the coronavirus stating that it is an ‘OBLIGATION’ to spread it should any of them contract the virus.”