White-light images showing the early evolution of the CME from three different vantage points, namely the two STEREO spacecraft and SOHO (top row: STEREO-A, middle row: SOHO, bottom row: STEREO-B). The date format in these images is yyyy-mm-ddThh:mm:ss. All spacecraft remote observations indicate that the CME propagation was mainly directed towards the south. For STEREO-A COR2, the first signatures of the CME appear to the southeast, as marked with the blue arrow. Only about an hour later did the northern signature appear in the COR2 field of view (also marked in blue). A second eruption appeared in the instrument field of view (marked with yellow arrows), whose source has been identified to be an eruptive flare that happened on the west limb in the field of view of SDO (see Fig. 3).