Tied-array images of a Type III radio burst at a) 50–55 MHz; b) 40–45 MHz; and c) 30–35 MHz, separated by 1 s. The inset is an SDO/AIA (193 Å) image of the EUV Sun at 13:08:18 UT. The dynamic spectra corresponding to two different beams, Beam 4 and Beam 24, are shown in panels d) and e). The locations of Beams 4 and 24 are marked in panels a)–c) with a triangle and square symbol, respectively. In panels d) and e), the white line identifies the timestamp in panel b). The full evolution of the radio sources in the dynamic spectra (Bursts 1, 2 and 3) can be seen in the online movie.