A Screven County man died in a three-vehicle collision late Monday afternoon at Fort Howard and Old Augusta roads, Effingham’s second deadly crash in less than a week.

The man was pronounced dead at the scene. The Georgia State Patrol identified him as Terry J. Mack, 21, of Newington.

There were “several other injuries” resulting from the crash but none were life-threatening, according to Effingham County Sheriff’s Office spokesman Detective David Ehsanipoor.

The latest fatal wreck came just four days after three brothers died in a fiery collision on Highway 17 involving their pickup and a tanker truck. Both crashes were caused by a driver running a stop sign, investigators said.

Mack was driving east on Fort Howard Road just before 5 p.m. and ran the stop sign at the intersection with Old Augusta Road, according to the Georgia State Patrol. A pickup southbound on Old side of Mack’s car. Mack’s vehicle then hit another car.

Mack and a passenger were both trapped inside his car, Ehsanipoor said. ECSO deputies and Rincon Police officers arrived first at the scene and helped pull the passenger from Mack’s car, but the driver was not responsive.

Meanwhile, a fire started under the hood of Mack’s car. Deputies and Rincon officers used fire extinguishers to manage the fire, Ehsanipoor said, and Rincon firefighters arrived and put it out “pretty quick.”

Monday’s crash increased the number of traffic deaths on Effingham County roads this year to 16 — double last year’s total of eight and more than twice the seven in both 2011 and 2010.

“And the year’s not even up,” Ehsanipoor said. “People ask why there are so many fatalities in the county this year, and we just don’t have that magical answer.”

One contributing factor, Ehsanipoor believes, is that more cars are on Effingham County roads than before. Another is that drivers have more electronic devices handy in their cars.

“We believe some of these crashes are due to distracted drivers,” he said. “They’re not just speed-related. They’re running stop signs.”