Within hours of the attack on a shopping centre in the central Ukrainian city of Kremenchuk, false and unproven claims began circulating online.
Stories were spread by Russian Telegram channels and by Dmitry Polyanskiy, Russia's deputy ambassador to the United Nations. They included rumours that the attack was "false" or "staged" - and were repeated on Russian television.
On Tuesday, Russia's defence ministry released a statement claiming the shopping centre was "non-functioning" and that the bombing of a nearby ammunitions dump sparked a secondary fire at the centre. Those claims were denied by Ukrainian officials.
What's the truth?
Claim: The shopping centre was 'non-functioning'
This claim is false. BBC reporters on the ground have spoken to shoppers and employees who were inside the building at the time of the attack.
Multiple posts listing details of missing people who were either working at the shopping centre on the day or went shopping there, were published in a local Telegram channel in the hours after the attack.
One pro-Kremlin "fact-checking" channel suggested that no photographs from inside the shopping centre had been posted on Instagram since March. However, a woman who lives in a nearby village and regularly goes shopping in Kremenchuk, told the BBC that the shopping centre had been "constantly open" and her family had visited it at least once a week.
She also shared video she had taken at the shopping centre from 25 June, showing open shops and people walking inside the building. Other, similar footage posted online appears even more recent - including a YouTube video apparently filmed just a day before the attack, also showing shoppers and businesses open as normal.
Some Telegram channels claimed there were no women or children at the shopping centre - implying that the building had been turned into a military facility. That claim is false, according to several eyewitness accounts and online videos.
Claim: The bombing of a weapons depot spread fire to the shopping centre
The Russian Defence Ministry claimed a strike on an arms storage facility detonated ammunition which set the shopping centre on fire.
"Western-manufactured weapons and ammunition stockpiled in the warehouse to be sent to a Ukrainian military grouping in Donbas were hit with a high-precision strike," the ministry said.
Ukrainian officials have denied there was a weapons depot nearby.
CCTV footage captured near a pond roughly 600 metres north of the shopping centre, on the other side of a factory building, shows two missile strikes in the area.
Video from CCTV cameras of #Kremenchuk. Two very powerful hits were filmed when rubble flies into a pond (Altanka Na Ostrovi Kohnannya). This pond is located 500 m from the shopping mall Amstor.#Ukrainewar #Ukraine #Kremenchuk pic.twitter.com/1IQqx99SAH— Chronology (@Chronology22) June 28, 2022
Matching the exact spots where the two missiles land in the CCTV video with aerial images of the area, it appears one missile hit close to the eastern end of the shopping centre, while the other struck the northern end of the factory, near the southern edge of the pond.
The factory mentioned by the Russian defence ministry is located roughly 300 metres north of the shopping centre. The buildings are separated by a wall, vegetation and rail tracks, making the claim that "secondary explosions" caused a large fire with multiple casualties in the shopping centre unlikely.
According to the Ukrainian online publication Kyiv Independent, a press officer of the regional administration confirmed that the machinery plant had been hit, injuring two individuals.
Svitlana Rybalko, from the regional State Emergency Service, denied there were weapons stored at the facility."It's a place for making road equipment, machines for road construction," she told the BBC. "There's also a greenhouse nearby where workers grow cucumbers."
Satellite images of the area, along with a video released by Ukrainian President Volodymyr Zelensky provide further evidence that these were the locations of the strikes.
This video also supports an earlier Ukrainian assessment that the missile was an air-launched Kh-22 weapon.
This is a medium-range cruise missile developed in the 1960s, originally to attack large warships. There is also a land-attack variant.
The weapon is large, liquid-fuelled and supersonic - but inaccurate by today's standards.
The relatively shallow angle of impact further points to its cruise nature. A ballistic missile follows a much more parabolic path.
Ukraine says the missiles were launched from bombers in the Kursk region of Russia, some 300km (185 miles) away.
Claim: The attack was 'staged' or a 'provocation'
This claim contradicts the official Russian defence ministry statement - even though top diplomats such as Mr Polyanskiy, the deputy UN ambassador, described the Kremenchuk attack as "a new Bucha-style Ukrainian provocation" on Twitter.
There's simply no evidence - nor has any been offered - that Ukraine bombed the shopping centre, or that the attack was "staged".
It's the latest example of a common tactic used by supporters of the Russian government - throwing multiple, conflicting, evidence-free narratives out in the immediate aftermath of an attack.
In a Twitter message, Mr Polyanskiy said the attack "will be used by Ukraine to attract as much attention as possible through promoting [a] false version of what happened" and "my tweet doesn't contradict the explanation provided by Russian [Ministry of Defence]".
Reporting by: Olga Robinson, Shayan Sardarizadeh, Daniele Palumbo, Chris Partridge, Joshua Cheetham and Nick Beake.