Jackson police spokeswoman Colendula Green identified the deceased officer as Bruce Jacob of Precinct 4, a five-year veteran of the department.
Chief Lindsey Horton said Jacob received a call at approximately 1:30 p.m. about debris on I-55 South near Northside Drive.
Horton said Jacob found a barbecue grill that had fallen onto the roadway.
WJTV-TV reported that Jacob had retrieved the grill from the interstate and was placing it into his trunk when a motorist hit the officer and his vehicle from behind.
Jacob was transported to the University of Mississippi Medical Center, where he died of his injuries, Horton said.
“It’s always tough to lose anyone, and not just the death of an officer but even an injury,” Horton told WAPT-TV.
“We knew and we know that this job is very dangerous. He was a public servant doing what we do when we receive calls for service.”
In the statement Mayor Lumumba said, "Our police officers put their lives on the line every minute of everyday day. Today, we suffered another tragic and senseless loss of one of Jackson's chosen. I acknowledge and appreciate the commitment and service of Officer Bruce Jacob. May God bless his loving wife and family and may God bless our officers."
Assistant Chief Lee Vance said the driver of the vehicle that hit Jacob was injured and also transported to UMC and still was undergoing treatment late Saturday afternoon. The driver’s name, condition nor any information on possible charges were released.
Horton said an investigation is continuing.