Liz Truss to hold Vladimir Putin’s 'regime to account' if chemical weapons used

Foreign Secretary Liz Truss.
Foreign Secretary Liz Truss.

Britain is increasingly worried that Russia could use white phosphorus munitions in the bombardment of Mariupol

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The Foreign Secretary has vowed to hold Vladimir Putin “and his regime to account” if it is proven Russian forces used chemical agents in an attack on Mariupol.

Liz Truss tweeted: “Reports that Russian forces may have used chemical agents in an attack on the people of Mariupol. We are working urgently with partners to verify details.

“Any use of such weapons would be a callous escalation in this conflict and we will hold Putin and his regime to account.”

Service members of pro-Russian troops inspect streets during Ukraine-Russia conflict in the southern port city of Mariupol.
Service members of pro-Russian troops inspect streets during Ukraine-Russia conflict in the southern port city of Mariupol.

The city’s Azov regiment reported soldiers were left dizzy and unable to breathe after a “poisonous substance of unknown origin” was dropped on them from a Russian drone, according to the Daily Mail.

It came hours after Mariupol’s mayor said more than 10,000 civilians have died in the Russian siege of his city and the death toll could surpass 20,000.

Britain is increasingly worried that Russia could use white phosphorus munitions in the bombardment of the city.

White phosphorus is used for illumination at night or to create a smokescreen, but when it is deployed as a weapon it causes horrific burns.

Western officials think Russia wants to bring about the fall of Mariupol to both free up troops for the fight in the Donbas but also to create a route north for the Kremlin’s forces as they look to form a pincer movement on Ukrainian defenders in the east.

U.S. Secretary of State Antony Blinken, British Foreign Secretary Liz Truss, Lithuanian Foreign Minister Gabrielius Landsbergis, Romanian Foreign Minister Bogdan Aurescu and Australian Foreign Minister Marise Payne attend a NATO foreign ministers meeting.
U.S. Secretary of State Antony Blinken, British Foreign Secretary Liz Truss, Lithuanian Foreign Minister Gabrielius Landsbergis, Romanian Foreign Minister Bogdan Aurescu and Australian Foreign Minister Marise Payne attend a NATO foreign ministers meeting.

Officials have said Mr Putin will double or even possibly triple the number of Russian troops in the Donbas as the Russian president resorts to a “diminished” invasion strategy.

The amassing of troops, however, will not necessarily give Moscow an advantage over Ukraine, with Kyiv’s forces having had success in pushing back insurgents in the east of the country, they said.

The Russian leader has been forced to “diminish considerably” the plan in Ukraine, one official said, amid suggestions Mr Putin wants to take the Donbas region before May 9 – when Russia traditionally marks the Soviet Union’s Second World War victory against Nazi Germany with military parades in Moscow – in an attempt to claim victory for his so-called “special operation”.

Meanwhile, late on Monday Ukraine’s parliament said Russian forces had fired on nitric acid tanks in Donetsk, with residents of the eastern city urged to prepare “protective face masks soaked in soda solution”.

The Foreign Office said it was “shocked” by reports of mass graves being found in the village of Buzova outside Kyiv.

Local officials said bodies showing “evidence of execution” had been discovered following the Russian withdrawal.

Buzova is near Bucha, another town where atrocities were discovered – although Russia has claimed the scenes from the aftermath of its occupation were staged.

The UK will work with allies to “investigate war crimes and ensure justice is done”, a Foreign Office spokesman said.