July 12, 2017-Hammond Police are asking the public to remain vigilant after a noted increase in gang graffitti from the street gang Aztec Souls. The Aztec Souls are a local street gang with ties to Chicago according to the statement. Police say the graffitti has been reported primarily off of Gostlin Street from Gostlin Street to Sheffield Avenue. Police stress they are working diligently to solve the problem and issued this alert to seek assistance from the public. GRAFFITTI VANDALISM IS A CRIME call 9-1-1 immediately if you see graffitti in your neighborhood. Police also ask residents to use motion sensor lights and increase lighting in alleys and dark areas.