  In AA collisions fusion and percolation of colour strings is studied at fixed
rapidity $y$. Distribution of strings in rapidity is obtained from the observed
rapidity spectra in pp collisions. For $y$-dependence of multiplicities in
Au-Au collisions good agreement is obtained with the existing experimental
data. Predictions for LHC energies coincide with the extrapolation of the data.
Agreement with the data of the transverse momentum spectra requires
introduction of quenching into the model.
