Tehran, Iran – Iranian authorities continue to warn of serious ramifications in case of military strikes by the United States, as more people are being arrested in connection with deadly protests amid a lingering internet blackout.

Tehran’s municipality on Sunday unveiled a giant billboard at the Enghelab (Revolution) Square in the capital’s central area, in an apparent warning to the deployment of the USS Abraham Lincoln supercarrier and supporting warplanes near Iranian waters.

The image showed a bird’s-eye view of an aircraft carrier with destroyed fighter jets on the deck and blood running in the water to form the US flag.

“If you sow the wind, you will reap the whirlwind,” read an accompanying message in Farsi and English.

Top military figures on Monday reiterated Iran’s readiness to engage in another war with Israel and the US in the case of an attack similar to last year’s 12-day conflict, while the Foreign Ministry promised a “comprehensive and regret-inducing response”.

Speaking to reporters during a news conference, ministry spokesman Esmaeil Baghaei also warned “the resulting insecurity will undoubtedly affect everyone” amid reports regional actors have been directly appealing to US President Donald Trump, who on Thursday said a US “armada” is heading towards the Gulf.

As the European Union ponders listing the Islamic Revolutionary Guard Corps (IRGC) as a “terrorist” organisation following a vote in the European Parliament, Baghaei said Tehran believes “more prudent European countries should be careful not to fall into the trap of the devilish temptations of non-European parties toward such an action”.

The Iranian establishment’s remaining allies in the so-called “axis of resistance”, who took no action during June’s war, have also signalled that they may this time attack US and Israeli interests if conflict breaks out.

Abu Hussein al-Hamidawi, the chief of the Iran-backed Kataib Hezbollah in Iraq, issued a fiery statement on Monday warning of “total war” in case of US aggression. Hezbollah’s Naim Qassem has repeatedly heaped praise on Iran’s Supreme Leader Ayatollah Ali Khamenei, including during a speech on Monday.

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Yes, keep me updatedThe Houthis in Yemen also released a video on Monday that showed US warships and previously attacked commercial vessels, indicating that they could once again become targets despite a Gaza ceasefire deal that stopped the attacks.

More protest-linked arrests reported

Meanwhile, judicial and intelligence authorities continue to report action against “rioters” as the Iranian establishment blames “terrorists” working in line with the interests of the US and Israel during the nationwide protests that started in late December.

Mohammadreza Rahmani, the head of the police authority in the northern province of Gilan, announced 99 new arrests in a statement on Sunday.

He alleged that those arrested were engaged in destroying public property or acted as “leaders” of unrest both on the streets and on social media.

State media said a person “who incited people, especially the youth”, in online posts to participate in protests was arrested in Bandar Anzali, also in the north.

The US-based Human Rights Activists News Agency (HRANA), which says it has confirmed 5,848 deaths during the protests, reported on Monday that at least 41,283 people have also been arrested across the country.

Iranian authorities have not announced any official arrest numbers, but said last week that at least 3,117 people were killed during the protests, including 2,427 described as “innocent” protesters or security forces.

Al Jazeera cannot independently verify these figures.

Speaking during a meeting with top judiciary officials on Monday, Chief Justice Gholam-Hossein Mohseni-Ejei reiterated his promise that “no mercy” will be shown when prosecuting protest-related cases.

He also expressed dismay at any calls for negotiations with the US amid what he called “an all-out war and economic blockade” against Iran.

“Some people portray all avenues for confronting the enemy’s aggression and coercion as blocked and repeatedly prescribe negotiation with a treacherous enemy,” he said.

Monitored internet access for businesspeople

Iranians across the country remain afflicted by an unprecedented total internet shutdown that has now lasted nearly three weeks.

A limited number of users have been able to tunnel out using proxies and virtual private networks (VPNs), but the authorities continue to block any proxies offering access to the outside world.

As with previous protests, internet access can only be restored through permission by the Supreme National Security Council, but the council has provided no timeline for reconnecting Iran’s 90-million-strong population.

In the meantime, the state appears to be gearing up to implement its longtime plans to enforce a so-called “tiered internet” that would only allow access to a limited number of permitted individuals and entities.

This week in Tehran, the authorities set up a small office to allow businesspeople who have identification from the Iran Chamber of Commerce to gain limited access to the internet.

Before being allowed to use the internet for a few minutes, they had to sign a form that committed them to use the connection for “business purposes” only, and emphasised they would be legally prosecuted if they “misuse” the opportunity.

A similar small office has also been opened for journalists by the Culture Ministry.

The rest of the population only has access to a local intranet designed to offer some basic services during state-imposed internet blackouts, but even that connection is slow and patchy. (Al Jazeera)

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