  The relativistic hydrodynamics equations are adapted for the spherically
symmetric case and the Lagrangian form. They are used to model the explosive
disruption of a minimum-mass neutron star: a key ingredient of the stripping
model for short gamma-ray bursts. The shock breakout from the neutron star
surface accompanied by the acceleration of matter to ultrarelativistic
velocities is studied. A comparison with the results of previously published
nonrelativistic calculations is made.
