TITLE: GCN CIRCULAR NUMBER: 24848 SUBJECT: GRB 190613B: JCMT SCUBA-2 sub-mm observations DATE: 19/06/19 01:14:23 GMT FROM: Ian Smith at Rice U I.A. Smith (Rice U.), D.A. Perley (LJMU), and N.R. Tanvir (U. of Leicester) report: We observed the location of GRB 190613B (D'Ai et al., GCN Circ. 24807) using the SCUBA-2 sub-millimeter continuum camera on the James Clerk Maxwell Telescope. The observation started at 11:40 UT on 2019-06-13, corresponding to 53 minutes after the burst trigger. Exposures totaling 1.0 hours were made in very good weather conditions. No source was detected, with the RMS background noise being 1.8 mJy/beam at 850 microns and 21.3 mJy/beam at 450 microns. We thank Kevin Silva, Jan Wouterloot, Koji Sugitani, and the JCMT staff for the prompt support of these observations that were taken under project M19AP044.