  Two-particle azimuthal correlations are measured with the ALICE apparatus in
pp collisions at $\sqrt{s} = 13$ TeV to explore strangeness- and
multiplicity-related effects in the fragmentation of jets and the transition
regime between bulk and hard production, probed with the condition that a
strange meson (K$^{0}_{\rm S}$) or baryon ($\Lambda$) with transverse momentum
$p_{\rm T} > 3$ GeV/c is produced. Azimuthal correlations between kaons or
$\Lambda$ hyperons with other hadrons are presented at midrapidity for a broad
range of the trigger ($3 < p_{\rm T}^{\rm trigg} < 20$ GeV/$c$) and associated
particle $p_{\rm T}$ (1 GeV/$c$ $< p_{\rm T}^{\rm assoc} < p_{\rm T}^{\rm
trigg}$), for minimum-bias events and as a function of the event multiplicity.
The near- and away-side peak yields are compared for the case of either
K$^{0}_{\rm S}$ or $\Lambda$($\overline{\Lambda}$) being the trigger particle
with that of inclusive hadrons (a sample dominated by pions). In addition, the
measurements are compared with predictions from PYTHIA 8 and EPOS LHC event
generators.
