  Transverse spin physics is an important part of the scientific programme of
the COMPASS experiment at CERN. The analysis of the data taken with the target
polarized orthogonally to the 160 GeV/c muon beam momentum has allowed to
measure for the first time the Collins and Sivers asymmetries of the deuteron.
Both for the positive and the negative hadrons produced in semi-inclusive DIS
the measured asymmetries are small and, within errors, compatible with zero.
New results for charged pions and kaons are presented here.
