  We investigated the relationship between hot (~10 MK) and warm (~1 MK) plasma
ejections observed in the solar corona during some flares from April 1998 to
December 2001. Based on the catalog of X-ray Plasma Ejections (XPEs) observed
by the Soft X-ray Telescope onboard the Yohkoh satellite, we have identified
counterparts of XPEs in extreme-ultraviolet (EUV) images, derived by the TRACE
satellite. We found that the XPEs are always associated with the EUV ejections.
In most cases, ejections of warm plasma start earlier than ejections of hot
plasma. The comprehensive analysis of kinematic and morphology evolution of the
most interesting and well-observed events is also given
