Spokesman Esmaeil Baghaei made the remarks in a post on X, former Twitter, on Monday.
He cited recent comments by the United Nations Special Rapporteur Ben Saul, during which the latter denounced the countries for “supplying 99% of the weapons [that are] exported to Israel,” and asserting that they “could stop” the war “overnight if they stopped the weapons that kill the Palestinians."
In light of the comments, Baghaei said the US and Germany “are aiding and abetting genocide by continued weapons transfers to Israel that have made them fully complicit in Gaza Genocide.”
The spokesman condemned Washington and Berlin for defying all legal norms revolving around the principle of “respect and ensure respect” for the international humanitarian law (IHL).
The countries were also in defiance of their international obligations on prevention and punishment of genocide, he added.
“They must be held to account for their wrongful & criminal acts.”
Since the start of the war last October, the United States has enacted legislation providing at least $12.5 billion in direct military support for the Israeli regime.
The sum includes $3.8 billion from a bill in March 2024 and $8.7 billion from a supplemental appropriations act in April 2024.
In October, however, a report for Brown University’s Costs of War project showed that the United States had spent a record amount of at least $17.9 billion on military support for the regime since the start of the war.
Also in October, figures showed that Germany had also approved arms exports to the regime worth €94 million ($98 million) since August alone.
Previously, though, Berlin had said it had approved no more than €45 million ($47 million) worth of arms exports to Tel Aviv for the entire year up to 13 October.
This is while German media outlets had earlier reported that the country appeared to have quietly stopped, or at least paused, the exports.
Throughout the war, both Berlin and Washington have been supposedly urging the regime to stop the brutal military onslaught.