BERLIN (AP) — Two German-Russian men have been arrested in Germany on suspicion of espionage, one of them accused of agreeing to carry out attacks on potential targets including U.S. military facilities in hopes of sabotaging aid for Ukraine, prosecutors said Thursday.

The two, identified only as Dieter S. and Alexander J. in line with German privacy rules, were arrested Wednesday in the Bavarian city of Bayreuth, federal prosecutors said.

They said Dieter S. had been discussing possible acts of sabotage in Germany with a person linked to Russian intelligence since October, and that the main aim was to undermine military support given by Germany to Ukraine. The suspect declared himself willing to carry out bombing and arson attacks on infrastructure used by the military and industrial sites in Germany, prosecutors said in a statement.