AURORA, Ill. (AP) — Police in Aurora say grand jurors have indicted 16 men on drug and firearm charges after a long-term gang investigation.

The Aurora Police Department says the Kane County indictments were unsealed Friday and 14 of the 16 men are in custody. The three-year investigation was a partnership between Aurora police, the FBI and Kane County prosecutors. Police say 96 felony charges were filed against men accused of being members of the Latin Kings street gang.

The investigation included undercover work, confidential informants and narcotics and weapons purchases.

Police said Friday that 90 Aurora officers and FBI agents went out Thursday and executed arrest warrants. Seven men were arrested Thursday and five men were already arrested and charged in connection with the investigation. Two were already in custody and two are at large.