  We use moment formalism of relativistic radiation hydrodynamics to obtain
equations of motion of radial jets and solve them using polytropic equation of
state of the relativistic gas. We consider curved space-time around black holes
and obtain jets with moderately relativistic terminal speeds. In addition, the
radiation field from the accretion disc, is able to induce internal shocks in
the jet close to the horizon. Under combined effect of thermal as well as
radiative driving, terminal speeds up to 0.75 (units of light speed) are
obtained.
