  Ram pressure stripping has been proven to be effective in shaping galaxy
properties in dense environments at low redshift. The availability of MUSE
observations of a sample of distant (z$\sim 0.3-0.5$) clusters has allowed to
search for galaxies subject to this phenomenon at significant lookback times.
In this paper we describe how we discovered and characterized 13 ram-pressure
stripped galaxies in the central regions of two intermediate redshift
(z$\sim$0.3-0.4) clusters, A2744 and A370, using the MUSE spectrograph.
Emission line properties as well as stellar features have been analyzed to
infer the presence of this gas--only stripping mechanism, that produces
spectacular ionized gas tails (H$_{\alpha}$ and even more astonishing
[OII](3727,3729) departing from the main galaxy body. The inner regions of
these two clusters reveal the predominance of such galaxies among blue
star-forming cluster members, suggesting that ram-pressure stripping was even
more effective at intermediate redshift than in today's Universe.
Interestingly, the resolved [OII]/H$_{\alpha}$ line ratio in the stripped tails
is exceptionally high compared to that in the disks of these galaxies, (which
is comparable to that in normal low-z galaxies), suggesting lower gas densities
and/or an interaction with the hot surrounding ICM.
