Full-resolution (9″ × 6″) LOFAR image overlaid on a CFHT r-band image. The LOFAR contours (solid red) show the (1, 2, 4, …)  ×  3 × σ_LOFAR levels and the dashed red contours show the −3σ_LOFAR contour where σ_LOFAR = 150 μJy beam⁻¹. The purple contours represent the weak lensing measurement (CFHT data: Sect. 2.5) showing the dark matter distribution. The two stars indicate the position of the two brightest cluster galaxies (BCG) in the cluster. The triangle indicates the position of the peak radio emission. The circle A indicates the location of the galaxy that is the optical counterpart of source HT. Circle B indicates a radio-loud galaxy that is not associated with source HT. Circle RG indicates the location of the galaxy that could be a possible counterpart of RP (discussed in Sect. 4).