Series of AIA 171 (panels a–f) and 304 (panels g–l) Å images of the active region NOAA 12297 showing the evolution of the M2.7 flare as well as the extended period following it. The green arrows in panels a–d indicate the rapid restructuring of the spine-like lines during the M-class flare. The sky-coloured arrows in panels a and f indicate a few bright coronal loops associated with the QSL. The red oval in panel d and the green arrows in panel j indicate the circular ribbon brightening during the flare. The sky-blue arrows in panels i and j indicate parallel ribbon brightening. The blue arrows in panels e and k indicate post-reconnection arcade. The blue oval in panel l encloses the brightenings from the location of the QSL. The blue five-pointed stars in panels a and g indicate the LCO.