Jordan said its air defense systems intercepted and destroyed five missiles fired from Iran early Wednesday, hours after the United States said it had repelled an Iranian missile attack targeting American forces in the Middle East, ending a brief lull in hostilities.

Jordan's military confirmed the interceptions, while Iran's state-run IRNA news agency quoted the Islamic Revolutionary Guard Corps (IRGC) as saying its Aerospace Force had launched ballistic missiles targeting Jordan's Muwaffaq Salti Air Base and the headquarters of the US military's Central Command in the country.

The renewed exchange of attacks rattled global energy markets, with Brent crude, the international benchmark, rising 3.1 percent to $84.58 per barrel.

Earlier, the US Central Command (CENTCOM) said American forces remained on high alert and had joined Saudi forces in carrying out strikes against sites in Iraq allegedly used by Iran-backed militias to launch recent attacks.

The United States warned that any further attacks on American troops or Saudi Arabia's energy infrastructure could trigger additional military action.

In Baghdad, Iraqi Prime Minister Ali al-Zaidi convened an emergency meeting of the National Security Council to assess the situation following the strikes.

The latest escalation follows a short period of relative calm between Washington and Tehran, during which neither side reported attacks for about three days after weeks of heightened tensions centered on the Strait of Hormuz, the strategic waterway through which roughly one-fifth of the world's traded oil passes.

The renewed violence adds to mounting pressure on US President Donald Trump after weeks of conflict in the region. Four American service members have been killed in recent fighting, while the Pentagon has sought additional funding from Congress to cover the growing costs of military operations.