A mob mugged a 13-year-old boy in a Brooklyn subway, pummeling him and then swiping his hat and one of his shoes, cops said Friday. 

The teen was standing in the mezzanine area of the Flatbush Avenue – Brooklyn College subway station around 5 p.m. Sunday when six muggers approached him, police said. 

The suspects – who appear to be teens themselves and were not known to the victim – punched and kicked the boy “throughout the body” before snatching a single shoe off his foot and his hat, authorities said. 

The group – most of them shown in a surveillance image wearing hoodies – ran off and were still on the lam Friday morning. 

The young victim was taken to Mount Sinai Hospital, where he was listed in stable condition.