Thursday morning at 08:04, Stations 15 & 29 responded to an MVC on S DuPont Hwy @ Cox Neck Rd. Q15 and C15 arrived (08:09) and found 1 person trapped with 2 additional BLS patients. Crews from Q15 and 296 extricated the patient at 08:15 and they were transported to CER by C15 and M6A. Command requested additional BLS for the two other patients who were transported by A6 and B4. Northbound S DuPont hwy was closed for approximately 25 minutes.