Brice Chase, 23, of Nashua, NH was arrested early Satturday morning in Waltham, MA by the Waltham PD. Chase was arrested on an outstanding warrant for the charge of Unarmed Robbery. At approximately 9:10 a.m. on December 29, 2011; a lone male entered the Sovereign Bank located at 489 Merrimack Street and passed a note to a teller demanding cash. The suspect then fled from the bank with an undisclosed amount of cash. The search for the suspect immediately following the robbery was unsuccessful. Detectives Tracy Kelly and Gary Dillon of the Lowell PD’s Criminal Investigations Division were assigned to the investigation into this robbery. Their investigation led to a warrant being issued for Chase as being the suspect in this unarmed bank robbery. Chase has been transported back to the Lowell PD where he is being held pending his arraignment anticipated for Monday, January 9, 2012. The defendant’s charges are allegations and the defendant is presumed innocent until proven guilty.