Tehran, Iran - Iran's parliament speaker has threatened attacks on energy infrastructure if the country's oil sales remain blocked, state news agency IRNA reported on Tuesday.

"In a region where we cannot sell oil, no one will sell oil," said Mohammed Bagher Ghalibaf, according to IRNA. "And if our security is not guaranteed, no infrastructure will be safe."

Ghalibaf was responding to a speech by President Donald Trump at the UN General Assembly last week, in which he again threatened severe strikes against Iran and said he was contemplating whether to "annihilate the Islamic Republic."

The US military has enforced a naval blockade since mid-July on ships seeking to enter or leave Iranian ports, bringing Iranian oil trade to a near standstill. 

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The lifting of the blockade is considered a central Iranian demand in negotiations with the US to end the war.

Iran and allied militias have been blamed for attacks in recent months targeting energy infrastructure – including pipelines and refineries – belonging to neighboring Arab states.