  We report here the discovery of a 30"-chain of embedded Herbig-Haro (HH)
objects in the rho Ophiuchi dark cloud. These HH objects were first detected
during a deep K_S-band observation (completeness magnitude for point source~19)
made with NTT/SOFI. We confirm their nature with follow-up observations made
with H_2 v=1-0 S(1) narrow-band filter. We argue that they belong to two
different jets emanating from two Class I protostars: the main component of the
recently resolved subarcsecond radio binary YLW15 (also called IRS43), and
IRS54. We propose also to identify the [S II] knot HH224NW1 (Gomez et al 1998)
as emanating from a counterjet of YLW15. The alignment between these HH objects
and the thermal jet candidate found in YLW15 by Girart et al. (2000) implies
that this jet is not precessing at least on timescale ~(2-4)x1E4 yr.
