VLT/FORS2 image of the GRB 191004B host-galaxy field ∼77.2 days after the Swift/BAT trigger. The host galaxy is not detected (magnitude limit R ≥ 26.6 mag). The corresponding afterglow position (error radius , as observed in the X-shooter r′ image ∼7.2 h after the burst) is indicated by a black circle. The slit at PA = −75° used for the X-shooter afterglow spectroscopy is also overplotted. Galaxy A corresponds to the intervening system at z = 2.137 identified in the VLT/X-shooter spectrum.