By Associated Press 1:50pm, May 1, 2013
Last year's Broad Street Run (Photo Courtesy of Broad Street Run)Officials in Philadelphia say there will be beefed-up security at the Broad Street Run and runners and race-watchers are urged to leave backpacks and big bags at home.
Mayor Michael Nutter says Wednesday that there will be more uniformed and undercover police officers along the 10-mile race route on Sunday.
He says there's no specific threat to the city but extra security measures are being taken in response to the Boston Marathon bombings.
Runners checking gear will get clear plastic bags for their items, rather than the cloth bags used in previous races.
No bags, backpacks or coolers will be allowed in the Navy Yard where the race ends.
The Broad Street Run says it is the largest 10K race in the country, with nearly 40,000 runners taking part.
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