Ali Bahreini, the Iranian ambassador to the United Nations, has said Iran would react without "reluctance" if the US do decide to attack.
When talking about the strikes from Israel, Bahreini said the US has been “complicit in this crime from the beginning”.
Earlier, Donald Trump said "I may do it, I may not do it", when asked whether the US would join Israeli strikes on Iran.
The US president added: "Nobody knows what I want to do. But I can say this: Iran’s got a lot of trouble and wants to negotiate".
Israel and Iran have exchanged numerous deadly strikes since Friday.
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