We present radio and infrared (3.6-24um) counterparts to submillimetre galaxies (SMGs) detected in the Extended Chandra Deep Field-South with the Large APEX Bolometer Camera (LABOCA) 870um bolometer camera on the 12m Atacama Pathfinder Experiment. Using the Very Large Array at .4GHz and Spitzer, we have identified secure counterparts to 79 of the 126 SMGs [signal-to-noise ratio (S/N)>3.7, S870>4.4mJy] in the field, 62 via their radio and/or 24um emission, the remainder using a colour-flux cut on Infrared Array Camera 3.6um and 5.8um sources chosen to maximize the number of secure, coincident radio and 24um counterparts.

Cone search capability for table J/MNRAS/413/2314/table1 (Radio properties of potential counterparts to LESS 870um sources in the ECDF-S)

Cone search capability for table J/MNRAS/413/2314/table2 (24um properties of potential counterparts to LESS 870um sources in the ECDF-S)

Cone search capability for table J/MNRAS/413/2314/table3 (IRAC properties of potential counterparts to LESS 870um sources in the ECDF-S that do not have robust counterparts identified in either the radio or at 24um and fall within the colour-flux cut shown in Fig. 3)