Ukraine said 120,000 useless mortar rounds were sent to its front line after a manufacturer tried to cut costs

Ukraine's internal security bureau said on Tuesday that it had detained four people after investigating the supply of 120,000 defective mortar shells to its troops. The Security Service of Ukraine, also known as the SBU, wrote on its Telegram channel that the people arrested included a military official, a quality control official, and two heads of a defense manufacturing business. The announcement came six months after Ukrainian media reported complaints from some frontline units that their 120 mm mortar shells weren't firing or would fail to explode.