As Russian troops close in on Ukraine's capital Kyiv, workers from a local construction company are preparing anti-tank obstacles to be placed on roads.
Instead of homes and offices, they're making giant, metal anti-tank barricades known as "hedgehogs," and smaller spiked barriers aimed at stopping wheeled vehicles.
After Russia invaded Ukraine on 24 February, KAN, a large local property company, reinvented itself to help the defences of the city of 3.4 million people.
It is another example of how Ukrainian civilians are supporting regular troops as they try to repel Russia's advance, including through civil defence units and independent militia that have formed across the country.
"We are now in the centre of one of the biggest development companies of the city and because of the war they changed their activity and they help our city to make the anti-tanks hedgehogs," said Dmytro Bilotserkovetsa, a member of the City Council and adviser to the Kyiv mayor.
"You have to understand, we are a nation of ants, everybody knows what to do, that is why Putin could not win, we will win."
Heavy equipment was brought in to build concrete checkpoints, blocking positions and bunkers inside the city and along all major roads and in the suburbs.
Workers cut long pieces of girder using blow torches and angle grinders, welding them together into triangular barriers used to bolster fortifications and slow the movement of tanks and tracked armoured personnel carriers.
"To help our army, our territorial defence in any way we can. We make anti-wheel hedgehogs. If we run out of metal, we make molotov cocktails. We'll do everything we can to make our country win," said Zakhar Povydysh, a foreman.
Russia has captured one Ukrainian city so far - the southern Dnipro River port of Kherson - and has bombarded others with increasing intensity, including Kyiv and the country's second city Kharkiv.
A giant column of Russian armour has stalled as it approaches Kyiv from the north, delayed by resistance, mechanical failures and congestion, according to the British defence ministry.
