Iran’s Foreign Minister Araghchi has visited an exhibition of objects left behind by the sailors of the Iranian frigate IRIS Dena, which was attacked by a US submarine, Al Jazeera reports.

Eighty-seven bodies were recovered at sea after a torpedo attack in international waters off Sri Lanka’s coast.

Araghchi says, “What happened is undoubtedly a war crime that will be recorded in history,” as the frigate “was attacked without any military action, without weapons, and without any prior warning”.

“This action is in no way considered a naval victory, but only shows the enemy’s helplessness,” Araghchi adds.

He further says, “Attacking an unarmed target far from the battlefield is not courageous; rather, it is a sign of cowardice”, although he has not explicitly mentioned the US.

He adds that the legal department of Iran’s Ministry of Foreign Affairs, in cooperation with the Navy, will “collect the documentation of this crime and we will carry out all the necessary legal follow-ups”.