Left panel: WFCAM JHK colour-composite image (J-blue, H-green, K-red). Right panel: continuum-subtracted H₂ image, smoothed with a Gaussian of FWHM = 2 pix, and averaged over all our observations. The images are constructed from our new WFCAM data, and cover a filed of view of 1.5′ × 1.5′. The dashed yellow line on the JHK image shows the location and direction of the major axis (length ×50) of the elliptical distribution of the 6.7 GHz methanol maser spots detected by Bartkiewicz et al. (2009). The blue (continuous) and red (dashed) contours overlaid on the H₂ image show the deconvolved blue- and red-shifted lobes of the outflow detected in CO (J = 3−2), see Sect. 2.3.1; the blue contours are at 3, 5, 10, 15, 20, 25, 30 and 40σ, and the red contours are at 3, 5, 7, 9, and 11σ above the mean background. The H₂ line emission features are enclosed in ellipse and labelled “MHO 2211”. The white circle on the top-right corner shows the JCMT beam size (14.6′′ at 345 GHz).