Slowly, gently even, young soldiers scrape away the dirt of decades from human bones. Tangled with the remains are shreds of cloth and the soles of shoes.
They're uncovering a little-known chapter of the Holocaust on a construction site in western Belarus.
The mass grave was discovered as building work began on an elite apartment block.
Since then, specially trained soldiers have unearthed the remains of more than 1,000 Jews, killed when the city of Brest was occupied by Nazi Germany.
"There are clear bullet holes in the skulls," says Dmitry Kaminsky.
His military team usually searches for the bones of Soviet soldiers. Here they have removed the small skulls of teenagers instead, and a female skeleton with the remains of a baby, as if she'd been cradling it.
People were shot in the back of the head and all the bodies were lying face down. The Nazis dug ditches and people were shot, then fell; shot, then fell"
Before World War Two, almost half the 50,000-strong population of Brest were Jews.
Up to 5,000 men were executed shortly after the German invasion in June 1941.
Those left were later crammed into a ghetto: several blocks of the city centre surrounded by barbed wire.
In October 1942, the order came to wipe them out.
They were herded on to freight trains and driven over 100km (62 miles) to a forest.
At Bronnaya Gora, thousands were led to the edge of a vast pit and shot.
It's thought the grave discovered within the old ghetto includes those who managed to hide at first, only to be rooted out.
"When my parents returned, the city was half empty," Mikhail Kaplan says, flicking through black and white snapshots at his kitchen table.
His mother and father only escaped the massacre because they were away when the Germans overran Brest. Mikhail's photographs are of aunts, uncles and cousins who were all killed.
"My father never spoke about what happened, it was too painful. But my grandmother cried all the time remembering Lizochka, Lizochka," he recalls, reaching for a photograph picture of his Aunt Liza dressed up for a night out with friends.
After the war, though, Mikhail says the Jewish massacre was not commemorated.
"Everyone knew what had happened, but no-one spoke of it officially," he says. "The Germans destroyed us, deliberately. The Soviets just stayed silent."
Even now, the only Holocaust museum in Brest is a room in a basement, curated and run by the small Jewish community that settled in the city after its liberation.
The displays include the miracle stories of the handful of ghetto survivors who hid beneath false floors or behind walls in their houses for months.
There's also a city register kept by the Germans. On 15 October 1942 it records 17,893 Jews in Brest. The next day, that figure is scratched out.
"That's how we know when the ghetto was liquidated," community leader Efim Basin explains.
He had suspected that workers would find some bodies at the construction site, but never so many.
"This only underlines how little we know about our history," he adds.
Efim has been exploring the archives over the years, working to correct that. But witness testimonies are limited. And the fate of the Jews in Belarus has always been merged with the catastrophic losses suffered overall under occupation.
"Officials would repeat the mantra 'Never forget!' about the dead, but the Jewish part was hushed up," Efim recalls. "War memorials were all dedicated to 'Soviet citizens'," he says, calling that part anti-Semitism, part the Soviet stress on "one nation".
"But that was very offensive. The Jews were not killed for resisting the Nazis. They were killed because they were Jews."
Touring the city on foot, Efim points out the many traces of Jewish life at its heart.
They include the main synagogue, with a cylindrical cinema built on top of it in the Soviet years. The original marble walls are still intact inside, too solid to destroy.
The Jewish cemetery, partly demolished by the Nazis, was then finished off by the USSR. The graves were heaped with soil and a sports stadium was installed on top.
The only Holocaust memorial in the city centre was put up by the Jewish community itself and the diaspora.
So they're pushing for a new, official monument now at the execution site. The proposals so far, though, include planting some trees in what will eventually become the garden of the luxury flats.
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"Some people say they're building on bones, but that isn't true," Alla Kondak, of the city's culture department insists. "We will only stop [excavation] work once all the remains have been recovered."
Those bones will be reinterred at the city cemetery, along with soil from the site, and Ms Kondak sees no need for more.
"There are graves everywhere here! The Germans shot and buried people on the spot," she argues.
But it seems few locals are aware of the specific fate of the Jews.
"We didn't learn anything at school about the Brest ghetto," two women in their twenties admit sheepishly. "I don't think anyone our age really knows."
"I know nothing about the ghetto or the grave," an older lady says, close to the excavation site, and hurries on.
But as another day's digging there draws to a close, the soldiers emerge from the pit balancing more muddy crates full of bones.
It's a history that becomes harder to ignore, with every fragment recovered from the ground.