Arsenio Dominguez, secretary-general of the International Maritime Organisation, has condemned attacks on shipping after Iran’s Revolutionary Guard fired on three ships in the Strait of Hormuz, seizing two and taking them to Iran.

Earlier, Trump said the United States would continue to blockade Iranian ports.

Two boys paddle-board in the sea as ships are anchored near the shoreline on April 22, 2026.Two boys paddle-board in the sea as ships are anchored near the shoreline on April 22, 2026.Getty Images

“The attacks on and seizures of commercial ships are unacceptable,” Dominguez said, urging an immediate halt and the release of vessels and crews. He warned that the situation remains “extremely volatile” and questioned why companies risk seafarers’ lives.

Nearly 20,000 seafarers remain at sea after seven weeks, uncertain when they can return home, he added.

AP