Threats to Iranian infrastructure, including transportation networks, electricity, and water, are “not a show of strength but a sign of desperation,” Iranian President Masoud Pezeshkian said on X/Twitter.
Iran "will stand firm against any pressure or threat," he added.
His statements came in response to US President Donald Trump threatening to strike Iran "hard" again on Wednesday.
Iran 'not afraid of fighting losers,' Tehran's parliament national security chief says
Ebrahim Azizi, the head of the national security commission of Iran's parliament, also reacted to Trump's statements, saying that "We are not afraid of fighting losers."
"The number of American casualties is already far higher than Trump confirms, and it will rise," Azizi wrote on X in English.
"This time, the war won't be limited to the region. We'll see what happens!" he concluded.
In addition, Iran's military spokesperson, Abolfazl Shekarchi, told Iranian state media on Wednesday that the country has "proven that we will respond to threats accordingly."