  We present preliminary measurements of the CP asymmetry parameters in B^0 ->
K^0_S K^0_S K^0_S decays, reconstructing two of the K^0_S into pi^+pi^- and one
into pi^0pi^0. In a sample of 227M $B\bar B$ pairs collected by the BABAR
detector at the PEP-II B-Factory at SLAC, we find the CP parameters to be S =
-0.25^{+0.68}_{-0.61} (stat) +/- 0.05 (syst) and C = 0.56^{+0.34}_{-0.43}
(stat) +/- 0.04 (syst).
  Combining this result with the previous BABAR measurement, obtained from
events with three K^0_S decaying into pi^+pi^-, we get
  S = -0.63^{+0.32}_{-0.28} (stat) +/- 0.04(syst) C = -0.10 +/- 0.25 (stat) +/-
0.05 (syst)
