Propagation of the EUV front following the flare through the solar corona. AIA 211 Å running difference images at six separate times showing the onset of the flare, followed by a EUV front propagating through the solar corona and faint moving feature detected beyond the solar limb. Type III radio burst contours are overlaid in a at two frequencies: 150 (blue) and 173 MHz (magenta). The EUV front is labelled in panels b–e by the black dotted outline. The radio centroids of the type II burst at 150 MHz are overlaid in d, where the colour bar represents time in seconds. The dotted vertical line in d also separates the UB (left of line) and LB (right of line) centroids. The red-coloured dashed line in c represents the location of the slit used in Fig. 5.