Washington, May 1 -- US President Donald Trump has threatened to impose sanctions on the 'countries or individual' found buying Iranian oil and petrochemical products.

Trump said such countries will face secondary sanctions, and these nations won't be allowed to do business with the United States going forward.

In a post on his social media account Truth Social, "ALERT: All purchases of Iranian Oil, or Petrochemical products, must stop, NOW! Any Country or person who buys ANY AMOUNT of OIL or PETROCHEMICALS from Iran will be subject to, immediately, Secondary Sanctions."

"They will not be allowed to do business with the United States of America in any way, shape, or form. Thank you for your attention to this matter," it added.

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