Saturation of the gluon density provides a natural way to tame the power-like growth of gluon distributions at small values of Bjorken x, observed in DIS experiments: at a certain value of x, the conventional low density expansion in the hard scale is argued to break down and gluon recombination effects, characterized by the saturation scale Qs(x) and non-linear QCD evolution, sets in. Two particle azimuthal angular correlations have been proposed as one of the most sensitive and direct probes of gluon saturation in DIS experiments. In this talk we present first results on the azimuthal angular correlation of three particles in the presence of saturation effects and discuss on-going efforts in the determination of next-to-leading order corrections to dihadron correlations within the CGC-framework.