The WA98 experiment at the CERN SPS measures Pb+Pb, Collisions at 158 AGeV.
The scaling properties of the charged particle multiplicity at midrapidity
with the number of participants are studied using the SPMD anti the MIRAC
detector. Neutral pion spectra obtained from the LEDA detector are compared
to hydrodynamical parametrizations. The collective flow in the target frag
mentation region has been studied using the Plastic Ball detector. The resu
lts exhibit a strong dependence oil centrality and rapidity.