The first attack happened just before 6:30 a.m. on June 30 at Quigley Park.
Witnesses told police they saw six boys get out of two cars and attack a 73-year-old man.
Just minutes later, officers responded to Hughes and Brown where officers say the teens attacked a 40-year-old man.
Police say the teenagers, ages 13 to 15, were arrested and face charges relating to both attacks and stolen vehicles.