K band spectra of H₂ bright clumps. The integrated K band spectra, in the rest frame, integrated over the regions shown in Fig. 1. Vertical dotted lines are used to show dominant emission lines. The strongest OH lines have been marked in the spectrum of Region 1 with the red dot-dash line. The ¹²CO absorption bands are also visible at 2.294, 2.323, and 2.353 μm respectively. Region 2 is the K Continuum peak and hot spot, Region 3 is the kinematic nucleus, and Region 4 is the H₂ emission peak.