The US just announced a new wave of sanctions against Iran

WASHINGTON (Reuters) - The United States on Friday sanctioned 13 individuals and 12 entities under U.S. Iran sanctions authority, days after the White House had put Iran "on notice" over a ballistic missile test and other activities.

In a statement on its website, the U.S. Treasury listed the sanctioned individuals and entities, some of which are based in the United Arab Emirates, Lebanon and China.

US President Donald Trump tweeted early on Friday that "Iran is playing with fire" and "they don't appreciate how kind President Obama was to them. Not me!"

Trump is seeking to ratchet up pressure on Tehran while crafting a broader strategy to counter what he sees as its destabilizing behavior.

Iran's decision to test-fire a ballistic missile on Sunday helped trigger Trump's decision.

Iran's Foreign Minister Mohammad Javad Zarif responded to Trump's tweet on Friday, saying that the Islamic Republic was "unmoved" by the US' threats, and that Tehran would never initiate war.

"Iran unmoved by threats as we derive security from our people. Will never initiate war, but we can only rely on our own means of defense," Zarif wrote.

Trump said on Thursday that "nothing is off the table" in dealing with Iran following its launch of a ballistic missile. Fellow Republicans in Congress said they would back him up with new sanctions.

Zarif said Iran had no intention to use its military might against any country, except in self-defense.

"We will never use our weapons against anyone, except in self-defense. Let us see if any of those who complain can make the same statement," he tweeted.

Iran said on Thursday it would not yield to "useless" US threats from "an inexperienced person" over its missile program.