"The crimes of the Zionist regime have crossed the red lines, and this may force everyone to take action," Raisi said on X, formerly Twitter, on Sunday.

"Washington asks us to not do anything, but they keep giving widespread support to Israel," he said.

"The US sent messages to the Axis of Resistance but received a clear response on the battlefield," he said.

Zionist regime’s crimes have crossed the red lines, which may force everyone to take action. Washington asks us to not do anything, but they keep giving widespread support to Israel. The US sent messages to the Axis of Resistance but received a clear response on the battlefield.

— سید ابراهیم رئیسی (@raisi_com) October 29, 2023

Although it was not immediately clear what he was referring to, there have been a string of attacks on US forces in Iraq and Syria, as well as increasing exchanges of fire between Hezbollah and Israeli forces on the Lebanon border since the war on Gaza began.

Iran, which backs Hamas, has insisted it was not involved in the Al-Aqsa Flood operation in the occupied Gaza envelope.

"Iran considers it its duty to support the resistance groups, but ... the resistance groups are independent in their opinion, decision, and action," the Iranian president said in an interview with Al Jazeera on Saturday, according to excerpts released by state news agency IRNA.

"The United States knows very well our current capabilities and knows that they are impossible to overcome," he said.