Ukraine is tracking Da Vincis and Warhols on the art market to stop sanctioned Russian oligarchs cashing in by selling their assets

• Ukraine has launched a site to track $1.3 billion of art owned by sanctioned Russian oligarchs.
• The site lists artworks like Picassos and Warhols believed to be bought and sold by sanctioned figures.
• The nature of the art market offers many loopholes for the transfer of assets, the site says.

Ukraine's national anti-corruption agency is zeroing in on one of the most colorful — and poorly regulated — places where sanctioned Russians can move cash: the art market.