Fresh military action by Washington after attacks on commercial vessels in the Strait of Hormuz has triggered another sharp escalation across West Asia, with Iran claiming missile and drone strikes on US-linked targets in the Gulf.

The fragile ceasefire between the United States and Iran suffered a major setback on Wednesday after American forces carried out large-scale airstrikes on more than 80 military targets across southern Iran. The operation, announced by the US Central Command (CENTCOM), marked one of the most significant military offensives since the recent truce and has raised fresh concerns over regional stability.

According to CENTCOM, the strikes were launched in response to attacks on three commercial vessels passing through the strategically important Strait of Hormuz. Washington blamed Iran for targeting the ships, including a Qatari tanker, although Tehran has not officially accepted responsibility for the incident.

Military infrastructure targeted

The US military said the operation focused on degrading Iran's military capabilities along the Gulf coast. Targets reportedly included air defence systems, command and control facilities, coastal radar installations, surface-to-air and anti-ship missile sites, drone launch locations, and more than 60 fast attack boats belonging to Iran's Islamic Revolutionary Guard Corps (IRGC).

Iranian state media reported explosions in several southern locations, including Sirik, Qeshm Island and Bandar Abbas, with fires breaking out at multiple sites following the strikes. However, Iranian authorities have not released any official casualty figures.

Iran announces retaliation

Shortly after the American operation, Iran's Islamic Revolutionary Guard Corps claimed it had launched missile and drone attacks on more than 85 targets associated with US military installations in Bahrain and Kuwait.

The IRGC said the headquarters of the US Fifth Fleet in Bahrain and Ali Al-Salem Air Base in Kuwait were among the intended targets. Neither the United States nor the governments of Bahrain and Kuwait immediately confirmed the extent of the claimed attacks, although air raid sirens were activated in Bahrain and Kuwait reported intercepting incoming missiles and drones.

Iran maintained that its military action was a direct response to what it described as repeated US violations of the ceasefire and earlier bilateral understandings.

Diplomatic tensions deepen

The renewed confrontation has prompted strong reactions from countries across the region. Qatar condemned attacks on commercial shipping and urged all parties to pursue dialogue to prevent further escalation. Egypt also criticised the attacks on Gulf states, calling them a threat to regional security and stability.

Iranian Foreign Minister Abbas Araghchi reiterated that Tehran would not negotiate under pressure and insisted that Washington must honour previous commitments before diplomatic engagement could resume.

Meanwhile, several international leaders stressed the importance of preventing a broader conflict in the Gulf, warning that continued military exchanges could disrupt global energy supplies and maritime trade.

Strait of Hormuz remains under focus

The Strait of Hormuz, through which nearly one-fifth of the world's oil shipments pass, has once again become the centre of geopolitical tensions. Following the attacks on commercial vessels, several oil and liquefied natural gas (LNG) tankers reportedly altered their routes or delayed transit due to rising security concerns.

Energy markets reacted cautiously as fears of prolonged instability in one of the world's busiest shipping corridors resurfaced.

Uncertainty over next steps

With both Washington and Tehran accusing each other of violating the ceasefire, prospects for immediate de-escalation remain uncertain. While the United States has defended its military response as necessary to protect international shipping, Iran has vowed to continue responding to any future attacks.

The latest developments have significantly heightened tensions in West Asia, raising fresh concerns over regional security, international trade, and global energy markets.