Russia is using a familiar tactic to blame an adversary for attacks it did not carry out – in this case by accusing Ukrainian forces of blowing up a garbage storage facility.
The purpose of the attack, the Russian defense ministry says, was so that Ukrainians could later accuse Russian forces of launching a chemical weapons attack.
Russia also claims that Ukrainian security forces have attempted to stage a second "fabricated" event, calling for troops to be used to "simulate a Russian air strike."
There is no evidence that any of these claims are true.
What are 'fabricated' attacks?
Moscow has a history of falsely accusing its opponents of organizing "provocations" that either never happened or were later carried out by themselves or their allies.
What did Moscow say?
A Russian Defense Ministry briefing on May 11 said Ukrainian forces had “carried out an explosion of a fertilizer tanker, apparently ammonium nitrate, which created a cloud of orange smoke that dissipated after some time.”
According to Moscow, the purpose of the explosion, which occurred in the Kharkiv region, was to accuse Russia of using chemical weapons in order to "extract additional military assistance from the West from the Kiev regime."
No evidence was provided to support the claim that Ukrainian forces were responsible for the explosion.
What do we know about the event?
The location in a video showing plumes of orange smoke rising into the sky was identified using satellite imagery of Dolgenkoye, an agricultural region near the city of Kharkiv.
A Ukrainian media outlet cited reports on Telegram that the smoke cloud formed after “a Russian drone hit an object".
After the explosion, Oleksiy Arestovych, an adviser to the head of the Ukrainian president's office, said he did not believe it was a Russian chemical weapons attack, although he added that to make this qualification, he would need to "clarify such preliminary data."
The BBC was unable to find evidence of Ukrainian officials accusing Russia of using chemical weapons in this incident.
Video and satellite images showing the farm buildings being hit are consistent with an explosion, which resulted in the burning of several objects containing ammonium nitrate – releasing a characteristic orange-coloured cloud, says Wim Zwijnenburg, a weapons researcher at Pax, a Dutch humanitarian organisation.
Zwijnenburg says up to 40 similar agricultural facilities have been destroyed in Ukraine since the Russian invasion began in February.
(Full treatment of the facts from BBC, available in English)