A US military expert claimed on Wednesday that explosives allegedly used to attack a Japanese-owned oil tanker near the Strait of Hormuz bore a "striking resemblance" to limpet mines publicly displayed by Iran.

The US made the presentation as the administration of Donald Trump has come under criticism from both domestic rivals and longstanding international American allies for its handling of Iran policy. Some experts say the attacks on two ships last week as well as recent rocket attacks targeting US installations in Iraq appear designed to roil Washington, and up the costs of its hardline Iran policy.

US Navy Cmdr. Sean Kido, described as an explosives expert, spoke to journalists in Fujairah, one of the seven monarchies that make up the United Arab Emirates, which has been a leading cheerleader of Washington's "maximum pressure campaign" against Iran. Both ships attacked last week are moored off the UAE coast.

Commander Kido showed reporters pieces of debris and a magnet that he claimed Iran’s Revolutionary Guard left behind when it allegedly removed an unexploded mine after the 13 June attack in the Gulf of Oman. Iran has not acknowledged taking any mine, and a video shown by the US military claiming Iranian officials were removing a mine appears inconclusive.

“The limpet mine that was used does bear a striking resemblance to that which has been publicly displayed in Iranian military parades,” Commander Kido said, according to the Associated Press. “There are distinguishing features.”

But he declined to describe what those distinguishing features were

“The damage we observed is consistent with a limpet mine attack,” he reportedly said..

Tensions high as Trump approves new Iran sanctions: In pictures Show all 17 1 /17 Tensions high as Trump approves new Iran sanctions: In pictures Tensions high as Trump approves new Iran sanctions: In pictures Iran claims that in this picture released by Iran state TV, their surface-to-air missile is seen as it shoots down a US surveillance drone EPA Tensions high as Trump approves new Iran sanctions: In pictures This photo shows US RQ-4A Global Hawk unmanned surveillance drone. A drone of this model was shot down by Iran on Thursday 21 June AFP/Getty Tensions high as Trump approves new Iran sanctions: In pictures An oil tanker is on fire after it was subject to a suspected attacked at the Gulf of Oman on June 13. The US has blamed Iran for the attack Reuters Tensions high as Trump approves new Iran sanctions: In pictures Iran claims that in this picture released by Iran state TV, debris from the downed US drone is seen after it was recovered from Iranian waters AFP/Getty Tensions high as Trump approves new Iran sanctions: In pictures Smoke billows from an oil tanker after it was subject to a suspected attacked at the Gulf of Oman on June 13 Reuters Tensions high as Trump approves new Iran sanctions: In pictures US President Trump holds up a signed executive order to increase sanctions on Iran on 24 June AP Tensions high as Trump approves new Iran sanctions: In pictures Iranian President Rouhani stated in a televised address that the White House is "afflicted by mental retardation" following the increase in sanctions on 25 June EPA Tensions high as Trump approves new Iran sanctions: In pictures An Iranian navy boat tackles the fire on the Norwegian owned Front Altair oil tanker after it was hit in a suspected attack AFP/Getty Tensions high as Trump approves new Iran sanctions: In pictures Iran claims that in this picture released by Iran state TV, debris from the downed US drone is seen after it was recovered from Iranian waters AFP/Getty Tensions high as Trump approves new Iran sanctions: In pictures Smoke billows from an oil tanker after it was subject to a suspected attacked at the Gulf of Oman on June 13 Reuters Tensions high as Trump approves new Iran sanctions: In pictures A screenshot from a video released by the US Department of Defense that the US claims to show Iranian removing an unexploded limpet mine form the hull of the Japan-owned ship that was attacked in the Gulf of Oman on June 13 Getty Tensions high as Trump approves new Iran sanctions: In pictures An item reportedly found on the Japan-owned oil tanker that was attacked on June 13 in the Gulf of Oman AFP/Getty Tensions high as Trump approves new Iran sanctions: In pictures A handout photograph from the US Department of Defense shows a composite material that the US claim was left behind on the hull of the Japan-owned oil tanker following the removal of an unexploded limpet mine Getty Tensions high as Trump approves new Iran sanctions: In pictures A view from the cabin of an Iranian navy boat as it tackles the fire on the Norwegian owned Front Altair oil tanker after it was hit in a suspected attack EPA Tensions high as Trump approves new Iran sanctions: In pictures Release by US government A picture released by U.S. Central Command shows damage to the hull of the oil tanker Kokuka Courageous. The picture suggests that the ship is 'likely' to have been hit by a mine as the US Secretary of State Mike Pompeo moves to blame Iran for the suspected attack Reuters Tensions high as Trump approves new Iran sanctions: In pictures Smoke billows from an oil tanker after it was subject to a suspected attacked at the Gulf of Oman on June 13 Reuters Tensions high as Trump approves new Iran sanctions: In pictures Release by US government A picture released by U.S. Central Command shows damage to the hull of the oil tanker Kokuka Courageous. The pictures suggests that the ship is 'likely' to have been hit by a mine as the US Secretary of State Mike Pompeo moves to blame Iran for the suspected attack EPA

Iran has denied being involved in the attack last Thursday that hit the Japanese tanker Kokuka Courageous and the Norwegian-owned Front Altair last week.

Former US intelligence and security officials have criticised Washington’s handling of the attacks, which have created tensions between Iran hawks and Democrats different factions on Capitol Hill.

But independent analysts and scholars say Iran was likely behind it.

“Iran is a strong culprit, anything is else just conspiracy theory,” said one former US intelligence officer. “But nobody trusts Bolton, Trump, or Pompeo. Lots of bluster and no substance.”

Commander Kido said unspecified authorities also recovered a fingerprints from one of the ships, which can be used in a criminal prosecution.

It remained unclear why the US military is investigating an attack on two foreign-owned vessels carrying non-US goods between non-US destinations.

The monarchical rulers of both Saudi Arabia and the United Arab Emirates, the nations from which the vessels departed, are close to the White House.In recent days, rockets have landed on or near the facilities of US military officials in the northern Iraqi city of Mosul and a compound housing international oil officials in Basra. Iranian hardliners have vowed for months to use various tools at their disposal to exact a price for tightening US sanctions on Iran that followed Washington torpedoing of the painstakingly crafted 2015 nuclear deal.

The Trump administration has come under criticism by lawmakers and international officials for pushing a confrontation with Iran based on leaks and whispers of wrongdoing by Tehran, with scant evidence or public debate.

Iran maybe seeking administration's Iran policy has become so toxic and politicised that it creates an opening for Iran to stage attacks that give Washington hawks just enough reason to accuse Iran, while allowing just enough doubt for critics to accuse them of warmongering.