[en] In the reaction pp→ppπ⁺π⁺π^-π^- at 10 GeV/c, enhancements around 1100 and 1300 MeV/c² in the (π⁺π⁺p^-) and (π⁺π^-π^-) systems are analysed. The peak at A₂^- is mainly visible in association with the Δ⁺⁺(1236) resonance, a phenomenon analogous to the previous observed reaction type pp→ΔrhoN. In contrast, a weak enhancement at A₁⁺ is not visible together with the Δ⁰(1236) resonance. The peak at A₁⁺ is predominantly seen in a subsample of single diffraction like events, whereas the peak at A₂^- is only visible in the corresponding non-diffractive subsample. (Auth.)