The system is called Leer-2. She was tracked down by soldiers of the 3rd Regiment of the Special Operations Forces. After that, the attack was launched. The type of weapon used was not specified. It could have been either an FPV drone or a high-precision artillery shell.
“The Leer-2 is a relatively new Russian electronic warfare and radio reconnaissance system. Production began in 2017. The Tiger-M armored vehicle is used as a chassis.