Authorities arrested four suspects after a rolling gunfight along I-30 between Royse City and Rockwall. Dispatchers received numerous 9-1-1 calls at about 1:30 Sunday afternoon that occupants of the vehicles were shooting at each other. One of the vehicles caused a crash in Rockwall, and three suspects fled on foot officers captured them. They arrested the other suspect after stopping his vehicle in Dalrock. There were no injuries.