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Solar eruptive events can be accompanied by large plasma velocities exceeding several hundreds km/s. Detection and measurement of such velocities is limited by narrow band filters and small range of wavelengths in most solar instruments. Nevertheless, such events with Doppler velocities exceeding two hundred km/s were detected recently by solar optical spectrographs in the Ondřejov observatory and SMART Telescope at Hida Observatory. We present preliminary results of data analysis of the June 7, 2011 solar flare performed in multiwavelength observations.