We present the XMM-Newton observations of X-ray afterglows of the \gamma -ray bursts GRB 011211 and GRB 001025 .
For GRB 011211 XMM detected fading X-ray object with an average flux in 0.2-10 keV declining from 2.7 \times 10 ^ { -13 } erg cm ^ { -2 } s ^ { -1 } during the first 5 ks of 27-ks observation to 1.0 \times 10 ^ { -13 } erg cm ^ { -2 } s ^ { -1 } toward the end of the observation .
The spectrum of the afterglow can be fit to a power law with \alpha =2.16 \pm 0.03 modified for the Galactic absorption .
No significant evolution of spectral parameters has been detected during the observation .
Similar X-ray spectrum with \alpha =2.01 \pm 0.09 has been observed by the XMM from the GRB 001025 .
The non-detection of any extra absorption in these spectra above the Galactic value is an interesting fact and may impose restrictions to the favorable GRB models involving burst origin in star-forming regions .
Finally we discuss soft X-ray lines from GRB 011211 reported by Reeves et al .
and conclude that there is no definitive evidence for the presense of these lines in the spectrum .