In a move marking a significant escalation in tensions in the Middle East, U.S. President Donald Trump said on Saturday that he had ordered targeted strikes on three Iranian nuclear sites.

Iranian Foreign Minister Abbas Araqchi said the "outrageous" U.S. attacks on Iran's "peaceful nuclear installations" will have "everlasting consequences."

In interviews with CGTN, experts suggest the U.S. strikes were carefully calibrated and are likely to bring negotiations over the Iran nuclear issue to a halt.

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Why now? Experts decode Trump's strikes on Iran nuclear sites