Serhii Kuyun, director of the A-95 consulting group, wrote on Facebook Friday that the cut off is starting.

“The worst decision that Belarusians could have taken in the current situation is to close the supply of A-95 gasoline to Ukraine, where their product has 50% of the market,” he wrote, noting that Ukrainian drivers, truckers and farmers need 50,000 tons of this fuel monthly. The uncertain mood is captured in a UNIAN headline: “Fuel lesson from Belarus: should Ukrainian motorists to stock up on gasoline?”