Driving north on highway 281 passing by Premont, TX around 7:50pm. Looking to the west skies I saw a long line of square/rectangular white lights approximately 15-20 maybe more. They were moving at a rapid speed from south to north and they suddenly started moving upwards and disappeared one by one into the atmosphere. Semi-truck traffic was heavy and I finally came to a stop. It was too late they never reappeared. Nonetheless, it was an unbelievable yet amazing sight.