DUBAI, Jan 6 (Reuters) - Iranian President Hassan Rouhani said on Monday nobody should threaten his nation, responding to a tweet from U.S. President Donald Trump in which he threatened to strike 52 sites in Iran.

"Those who refer to the number 52 should also remember the number 290. #IR655," Rouhani tweeted, referring to the 1988 shooting down of an Iranian airline by a U.S. warship in which 290 were killed. "Never threaten the Iranian nation." (Reporting By Babak Dehghanpisheh Editing by Gareth Jones)

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