  The $({\rm n},\gamma)$--cross sections for neutron--rich oxygen isotopes have
been calculated in the direct capture model. The experimental data for
${^{18}{\rm O}}({\rm n},\gamma){^{19}{\rm O}}$ can be reproduced using this
model. Compared to previous work the cross section for ${^{19-21}{\rm O}}({\rm
n},\gamma){^{20-22}{\rm O}}$ are enhanced considerably by factors between four
and 300.
