A garment worker was killed as a wall of a garment factory collapsed on him at Mawna in Sreepur upazila on Monday morning. The deceased was identified as Nasiruddin, a resident of Singardighi area of the upazila. Witnesses said parts of a wall of a factory of Crown Fashion at Mawna collapsed on Nasiruddin at about 8:00am while he was working, killing him on the spot.