A teenager has become the first person to die "from cold" at the EU border as the migration crisis worsens, reports say.
More than 1,000 people - many fleeing the Middle East - are waiting at the Belarusian boundary with Poland.
Migrants have been arriving in the ex-Soviet state and trying to get into Western Europe for weeks.
But Polish border guards have been stopping people from crossing - forcing them to set up makeshift camps and wait in the cold.
Harrowing footage, released on Thursday, is alleged to show Belarus security operatives carrying away the body of a Kurdish boy, 14.
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The Mirror has decided not to publish the video due to its sensitive nature.
"He died of a cold," said an Iraqi, who was in contact with Polish investigative media oko.press.
Another migrant confirmed: "The child is dead - yes."
The Belarus Border Committee has denied reports of the death.
The border stand-off has turned into an international incident, with the Belarusian dictator Alexander Lukashenko stirring the pot.
He has even claimed the scenes at the border are akin to Nazi extermination camps in the Second World War.
The West has accused Lukashenko of weaponising migrants and engaging in a "hybrid war" in revenge for sanctions against his "brutal and corrupt regime".
If confirmed, the boy is believed the first to have died at the Kuźnica crossing - where temperatures are around zero at night.
The Belarus authorities - responsible for the migrants after issuing visas and permitting a succession of flights to Minsk from the Middle East - have launched a propaganda offensive blaming Poland and the West for the troubling scenes at the frontier.
Lukashenko's state-controlled TV is blaming Warsaw and Europe for the rising human misery, despite clear evidence he has allowed thousands to fly to Minsk so they can seek entry.
Many behind the fence on the border want to reach Britain, despite the UK not being in the EU, it is claimed.
In a biting TV broadcast on Channel 1 in Belarus, the presenter said: "The methods of the Polish siloviki (military and law enforcement) cannot be called anything but fascist."
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Interspersing a report with Nazi death camp victims on Polish territory in the Second World War, a report told viewers: "In the night when the migrant families were trying to fall asleep they had floodlights facing them, and a loud speaker blasting over their heads."
Footage from the border was also interspersed from a movie about Sobibor extermination camp in Nazi-occupied Poland, where up to a quarter of a million Jews were murdered.
The broadcast said: "Torture and humiliation - does it remind you of something?"
Russia and Belarus are closely linked, with Lukashenko and president Vladimir Putin thought to be good friends.
However, the Kremlin has said Russia has nothing to do with the crisis - despite sending two bombers over Belarus on Thursday.
The country deployed two strategic Tu-160 'White Swan' supersonic aircraft to overfly Belarus in drills to "simulating bombing", according to the Minsk defence ministry.
The mission followed Wednesday's flights over the country by Vladimir Putin's Tu-22M3 nuclear bombers.
The Belarus Border Committee said of the reports of the dead teenager: “Doctors of the border service helped the child, who showed signs of hypothermia.
“The widespread information about a case of death among refugees does not correspond to reality.”
The statement added: “Medical assistance was provided to two women directly in the refugee camp due to hypothermia and head injury.”
Medical teams were “constantly on duty near the camp”, said the statement referring to dropping temperatures.
The lack of international medical groups at the camp makes it impossible to independently verify the claims.
