The Saab Bofors Dynamics STRIX is a Swedish guided projectile fired from a 120 mm mortar.
STRIX is fired like a conventional mortar round. The round contains an infrared sensor that it uses to guide itself onto any tank or armoured fighting vehicle in the vicinity where it lands.
STRIX has been in service with the Swedish and Swiss Armies since 1994.
As well as being fired by conventional mortars, STRIX can be fired by the Advanced Mortar System, an automatic dual 120 mm mortar mounted in a turret for fitting to armoured fighting vehicles.