The asymptotic behavior of Planck energy elastic and inelastic amplitudes i
n quantum gravity is studied by means of the functional integration method.
A straight-line path approximation is used to calculate the functional int
egrals which arise. Closed relativistically invariant expressions are obtai
ned for the two "nucleons" elastic and inelastic amplitudes including the r
adiative corrections. Under the requirement of "softness" of the secondary
gravitons a Poisson distribution for the number of particles emitted in the
collision is found.