A polyaxial bone anchoring device including an anchoring element including a shank and a head a receiving part to pivotably receive the head, the receiving part having a first end, a second end, a central axis extending between the first and second ends, a coaxial bore, and first and second recesses on each side of the coaxial bore for receiving a rod, a longitudinal axis of the recess being substantially perpendicular to the central axis a first clamping part having a rod supporting surface extending along the longitudinal axis and in the first recess when in the receiving part, a center of the first clamping part along a direction transverse to the longitudinal axis including a groove at the rod supporting surface a second clamping part to exert pressure on the rod and in the first recess when in the receiving part and a locking device to secure the rod.
