"I would like — I do not know if it will happen or not — our minister of foreign affairs or the federal chancellor to impose diplomatic sanctions against the United States or specific measures to restrict the movement of aircraft in relation to the United States," Hubner, a member of the right-wing Austrian Freedom Party, told SNA Radio.
"Thus, in my opinion, the US government has violated [Austria's] neutrality, which no doubt is a serious crime," he stressed.
Ukraine has repeatedly requested lethal aid from the United States. Washington has denied the requests, saying that it would provide only non-lethal support to Kiev.
In February, Russian President Vladimir Putin said the Russian intelligence services had found evidence that the United States was supplying weapons to Kiev.