  We present the spectral and temporal analysis of the X-ray flash XRF011030
observed with BeppoSAX. This event is characterized by a very long X-ray
bursting activity that lasts about 1500 s, one of the longest ever observed by
BeppoSAX. In particular, a precursor and a late flare are present in the light
curve. We connect the late X-ray flare observed at about 1300 s to the
afterglow emission observed by Chandra and associate it with the onset of the
afterglow emission in the framework of external shock by a long duration engine
activity. We find that the late X-ray flare and the broadband afterglow data,
including optical and radio measurements, are consistent either with a fireball
expanding in a wind environment or with a jetted fireball in an ISM.
