A comparison of the radio continuum emission at 610 MHz (in blue) from the region around SNR G338.3−0.0 and the infrared emission at 8 μm (in green) and 24 μm (in red) taken from the Spitzer Space Telescope GLIMPSE and MIPSGAL surveys, respectively. The white circle marks the position and extension of HESS J1640 − 465, while the cross indicates the location of the X-ray source S₁ (Lemiere et al. 2009).