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Aims. Expanding HII regions and propagating shocks are common in theenvironment of young high-mass star-forming complexes. They can compress apre-existing molecular cloud and trigger the formation of dense cores. Weinvestigate whether these phenomena can explain the formation of high-massprotostars within an infrared dark cloud located at the position of G327.3-0.6in the Galactic plane, in between two large infrared bubbles and two HIIregions. Methods: The region of G327.3-0.6 was imaged at 450 ? m with the CEAP-ArT\'eMiS bolometer array on the Atacama Pathfinder EXperiment telescope inChile. APEX/LABOCA and APEX-2A, and Spitzer/IRAC and MIPS archives data wereused in this study. Results: Ten massive cores were detected in the P-ArT\'eMiSimage, embedded within the infrared dark cloud seen in absorption at both 8 and24 ?m. Their luminosities and masses indicate that they form high-mass stars.The kinematical study of the region suggests that the infrared bubbles expandtoward the infrared dark cloud. Conclusions: Under the influence of expandingbubbles, star formation occurs in the infrared dark areas at the border of HIIregions and infrared bubbles.

Evidence of triggered star formation in G327.3-0.6. Dust-continuum mapping of an infrared dark cloud with P-ArT\'eMiS