Last year, the army received 20 units of BTR-3 and 25 units of BTR-4 armored vehicles.
"Now, from that amount of modern equipment there are only 18 vehicles left in service," the source said.
The Ukrainian armored vehicles are out of service not because of military action, but due to poor manufacturing, ZN said.
The General Staff also reported that out of 90 repaired T-64 tanks, 66 armored vehicles had similar problems as "repaired" BTRs.
Earlier this year, Latvian media reported that Ukrainian T-64 tanks made in Kharkiv had serious manufacturing defects that significantly decreased their ability to take a hit. When Ukrainian tanks are hit, their top turrets tear away and their hulls receive severe damages, sometimes with wielding seams easily breaking apart.