Sub-arcsec images in the J, H, K and H-2 and nearby continuum of the b
ipolar outflow NGC 6334 I are presented. Three knots of Hz emission ar
e found which coincide with recently discovered NH3(3,3) masers. Two o
f these are aligned along the CO bipolar outflow, indicating that the
hydrogen molecular emission is shock excited. We have also detected a
loop-shaped infrared nebula extending to the east of the massive mid-i
nfrared source IRS 1 which illuminates the reflection nebula. IRS1 con
sists of at least four components in the near-infrared. The interactio
n of the stellar wind from these young stellar objects with the surrou
nding medium could excite the third H-2 emission knot and associated a
mmonia maser.