We present radio observations of the source G332.5–5.6 , a candidate supernova remnant ( SNR ) .
Observations have been performed with the Australia Telescope Compact Array ( ATCA ) at two frequencies , at 1.4 and 2.4 GHz .
Our results confirm that G332.5–5.6 is an SNR , with a spectral index \alpha = -0.7 \pm 0.2 for the whole source and an average fractional polarization of \sim 35 \% at 2.4 GHz .
The central component is coincident with extended X-ray emission and the distance to the SNR is estimated to be \sim 3.4 kpc .
Based on its radio and X-ray morphology , this SNR should be classified as a composite , and we suggest that it belongs to a trident-shaped subclass like G291.0–0.1 .