New missile in Israel-Iran conflict: What we know about Tehran's Sejil

Euronews

4 hours ago

Iran's Islamic Revolutionary Guard Corps (IRGC) on Wednesday announced the use of a super-heavy Sejil missile as part of what it said was the 12th wave of strikes on Israel.
Despite its frequent appearance in the Tehran regime's military parades since it was reportedly brought into service in 2012, the Sejil missile's launch against Israel marks the first time one of its prized assets was used in direct confrontation.
Its real-world application also reveals a shift in gears in Tehran's deterrence calculations and response.
The Sejil, or "Brimstone", is classified as a surface-to-surface ballistic missile and was developed entirely inside Iran by the Ministry of Defence-run Aerospace Industries Organisation.
Although some reports claimed that Tehran used similar Chinese-made missiles as a technical basis for the Sejil, its size and other features suggest it is entirely designed and produced in Iran.
The missile, developed to replace the Shabab class of rockets in service since the late 1980s, has a range of about 2,000 kilometres and uses solid fuel as propellant, making it quicker to launch compared to liquid-fueled equivalents.
The Sejil is manoeuvrable in all stages of flight, making it difficult to intercept by conventional air defence systems. Although details on its speed are unclear, Tehran reportedly stated that it is capable of reaching Tel Aviv in approximately seven minutes if launched from central Iran.
In terms of technical specifications, reports say it measures 25 metres in length, 1.25 metres in diameter, and weighs approximately 2.3 metric tonnes. It can carry warheads weighing up to 700 kilograms and is believed to be capable of carrying nuclear warheads.
The Sejil first appeared in a field test in 2008, before its improved version, the Sejil-2, was developed in 2009. In this version, the warhead design was modified, and guidance wings were added to enhance accuracy.
However, some reports claim that Sejil-2 might not be a separate model, but rather a test name for the same rocket. Yet footage from 2021 military exercises featuring the Sejil shows updates to earlier missiles of the same model have been made, notably to its jet vanes.
Furthermore, rumours of another updated model, the Sejil-3, say that a more modern version was developed with a maximum range of 4,000 kilometres, meaning that in theory it could almost reach Brussels from Tehran.
Israeli authorities said on Thursday that the Sejil was successfully intercepted, with debris causing damage to a vehicle.
China dispatched 74 military aircraft towards the Taiwan Strait between late Thursday and early Friday, with 61 of them crossing its median line, the Taiwanese defence ministry has said.
The incursion, which represents one of the largest in recent months, began a day after the UK sailed a navy ship across the strait, in a move welcomed by Taipei but condemned by Beijing.
The Chinese planes were sent in two separate waves, with six naval vessels also accompanying the manoeuvres, according to Taiwan.
Beijing regards the democratically governed island as part of its own territory and has stepped up such deployments to demonstrate its readiness to encircle and potentially invade Taiwan.
Analysts say the moves are also aimed at intimidating Taiwan's population and exhausting its military resources and morale.
Taiwan responded by scrambling its own fighter jets, deploying naval ships and activating land-based missile systems to monitor the incursion.
The incident came after the British patrol vessel HMS Spey passed through the Taiwan Strait on Wednesday.
Taiwan's Ministry of Foreign Affairs welcome the patrol, saying it 'once again (reaffirmed the Strait's) status as international waters".
'Such transits by the UK and other like-minded countries are encouraged to safeguard peace and stability in the Taiwan Strait, and to promote a free and open Indo-Pacific,' it added.
Britain's de facto embassy in Taipei said the HMS Spey was legally within its rights to sail through the strait.
'Wherever the Royal Navy operates, it does so in full compliance with international law and exercises its right to Freedom of Navigation and overflight,' it stated.
However, Beijing condemned the Royal Navy's actions, with the Chinese army saying the British vessel had 'deliberately disturbed the situation and undermined the peace and stability of the Taiwan Strait".
While the timing raised speculation, it remains unclear whether China's large-scale aerial deployment was a direct response to the British naval transit.
The Taiwan Strait is an important international waterway, but Beijing routinely objects to the presence of foreign military vessels in the area.