The Iran war Trump trend intensified after Iran rejected new U.S. threats of economic pressure, exposing another sharp exchange between President Donald Trump and Iranian officials.

The Associated Press reported Thursday that Iranian Foreign Minister Abbas Araghchi dismissed Trump’s warning of “crushing economic measures” and isolation. Araghchi said the policy would create more hostility and described it as a threat to national sovereignty and the global economy.

Trump had said the United States would pursue economic warfare and isolation on an unprecedented scale, according to AP. The report said he provided few details about the measures while the wider conflict and diplomatic tensions continued.

El País reported that Trump called for allies to join the effort to isolate Iran and said Iranian authorities were under pressure. The newspaper also reported Araghchi’s view that the remarks were intended to divert attention from financial problems in the United States.

The statements add to an already tense relationship shaped by military operations, negotiations and disputes over Iran’s nuclear programme. They do not by themselves establish that a new military action has begun.

Diplomatic and economic developments can change quickly. The latest accounts show the two governments publicly rejecting each other’s position, while further decisions by Washington, Tehran and regional partners will determine the next stage of the crisis.