MIDIS MIRI 5.6 μm image in the HUDF (centre) with $4\stackrel{″}{.}0\times 4\stackrel{″}{.}0$ false colour maps (F1000W/F770W/F560W as R/G/B) for the 31 X-ray-detected sources. We highlight the positions of sources classified as galaxies (blue squares) and AGNs (red squares) in the 5.6 μm image. In each false colour image, we label the source ID from Luo et al. (2017), spectroscopic redshift, absorption-corrected intrinsic 0.5−7.0 keV luminosity (L_Xc), and the object class (AGN or galaxy). ID 695 and ID:758 are shown as monochromatic F560W images due to the high noise levels in the F1000W image.