Chemical weapons

'Delayed deaths': UK report claims chemical agents used on Iranian protesters

Reports from UK officials suggest Iran used chemical substances to control protesters. Alleged delayed health reactions lead to deaths days later, sparking international concern.

Iranians gather while blocking a street during a protest in Tehran, Iran on January 9, 2026. The nationwide protests started in Tehran's Grand Bazaar against the failing economic policies in late December, which spread to universities and other cities
Iran's Supreme Leader Ayatollah Ali Khamenei attends a meeting with students in Tehran, Iran, November 3, 2025

Israel concerned Iran covets chemical, biological weapons

Qatar's Prime Minister and Minister for Foreign Affairs Sheikh Mohammed bin Abdulrahman bin Jassim Al-Thani, attends the preparatory ministerial meeting for emergency Arab-Islamic summit in Doha, Qatar September 14, 2025.

Qatar, Ireland accuse Israel of using chemical weapons on Palestinians, demand watchdog probe use

Protesters, predominantly Houthi supporters, demonstrate in solidarity with Palestinians, in Sanaa, Yemen, August 8, 2025.

Tune into today's top stories: Israel rejects claims, Yemen intercepts Houthi chem. weapon shipment


Syrian victims of chemical attacks file case with German prosecutors

Germany, which is home to 600,000 Syrians, has "universal jurisdiction" laws that allow it to prosecute people for crimes against humanity committed anywhere in the world.

UN chemical weapons experts inspect alleged chemical samples from an attack in Syria, 2013

'Russia's use of poison is considered use of banned chemical weapons'

"Any poisoning of an individual through the use of a nerve agent is considered a use of chemical weapons."

A woman attends a gathering to show support for Russian opposition leader Alexei Navalny, in Saint Petersburg, Russia August 20, 2020.

Alleged Israeli airstrikes target research center in Aleppo

Further airstrikes by unidentified aircraft on Iranian militias were reported near the Syria-Iraq border shortly after.

Women walk past shops in Manbej, in Aleppo countryside, Syria May 10, 2018.

Syrian air force behind chemical attacks, investigation team finds

Officials in the government of Bashar al-Assad and its military backer Russia have repeatedly denied using chemical weapons.

UN chemical weapons experts inspect alleged chemical samples from an attack in Syria, 2013

Ex-CIA official warns of Iran, ISIS drones armed with chemical weapons

The warning takes on greater meaning following a call on January 28 by ISIS’s new leader Abu Ibrahim al-Hashimi al-Quraishi, to direct greater attention to attacking Israel and Jews, including using chemical weapons.

Iranian versions of the American RQ-170 drone which were used in a military exercise in the Gulf in Iran, involving dozens of drones, are seen on the a runway, in this undated handout photo.

Pompeo: Syria used chlorine in Idlib chemical weapons attack

"Today I am announcing that the United States has concluded that the Assad regime used chlorine as a chemical weapon on May 19."

UN chemical weapons experts inspect alleged chemical samples from an attack in Syria, 2013

Exiled Thai critic attacked with chemicals in Japan

Neither was seriously hurt, but Pavin said they have been told by police not to return home.

UN chemical weapons experts inspect alleged chemical samples from an attack in Syria, 2013

Establish a chemical and biological WMD free zone in the Middle East now

Today, with growing turmoil in the Middle East, setting up a collaboration leading to the eventual elimination of nuclear weapons in the region appears out of the question.

A late night view of the Beau Rivage Palace Hotel during an extended round of Iran nuclear talks in Lausanne

New chemical weapons team to launch first Syria investigations

Last June, the Investigation and Identification Team (IIT) was established by the OPCW's member states.

A United Nations (U.N.) chemical weapons expert, wearing a gas mask, holds a plastic bag containing samples from one of the sites of an alleged chemical weapons attack in the Ain Tarma neighbourhood of Damascus, Syria August 29, 2013.

Why Syria feels it can use chemical weapons with impunity

That a mass murderer like Assad continues to go unpunished helps explain why his regime remains in power.

Syrian medical staff take part in a training exercise to learn how to treat victims of chemical weapons attacks, in a course organized by the World Health Organisation (WHO) in Gaziantep, Turkey