Iran's Supreme leader Ayatollah Ali Khamenei on Monday accused the U.S. of destabilizing the Middle East and creating ISIS.
In a recent meeting with high-ranking Iranian officials, Khamenei protested U.S. involvement in the region.
"You and your agents are the source of instability in the Middle East," Khamenei said, referring to the U.S. "Who created Islamic State?"
According the Iranian government's official site, Khamenei called the U.S. "a terrorist (state)" and "the core of terrorism." He claimed the U.S. is helping ISIS create further instability in the region.
Khamenei's comments come after a top Iranian general claimed the Islamic Republic had evidence the U.S. was directly supporting the group.
According to Newsweek, Major General Mostafa Izadi, deputy chief of staff of Iran’s armed forces, said Sunday that the government in Tehran had “documents and information” showing Washington’s support of the extremist Sunni Islamist group.
"We possess documents and information showing the direct support of the U.S. imperialists for this highly disgusting movement (ISIS) in the region which has destroyed Islamic countries and created a wave of massacres and clashes,” Izadi said, acccording to Iran's semiofficial Fans News Agency.
Iran recently suffered twin terrorist attacks in its capital, Tehran. At least 12 people were killed and 42 were wounded when six attackers went to Iran's parliament and another historical site armed with assault rifles.
President Trump issued a statement shortly after to offer his condolences -- and send a warning to Iran.
"We grieve and pray for the innocent victims of the terrorist attacks in Iran, and for the Iranian people, who are going through such challenging times," Trump said in the statement. "We underscore that states that sponsor terrorism risk falling victim to the evil they promote."
Iran’s Foreign Minister Javad Zarif tweeted in response that Trump’s comments were “repugnant.”
Iran has been designated as a state sponsor of terrorism by the State Department since 1984. The country has been heavily involved in the war against ISIS in Syria and Iraq.