The suspect fled the scene on a bicycle, police said.
An update to this story was posted at 5:49 p.m.
SPRINGFIELD - Police are investigating the second bank robbery in four days at the TD Bank branch at 958 State St., said Sgt. John Delaney, spokesman for Police Commissioner William J. Fitchet.
The robbery was reported at about 3:30 p.m. Friday
An unidentified man handed the teller a note demanding cash. He implied he had a weapon but no weapon was shown.
He left with an undisclosed amount of cash. The suspect was last seen fleeing the scene on a bicycle, Delaney said.
No description of the suspect was available but police are going through bank surveillance camera footage Friday afternoon, Delaney said.
There were reports that dye packs hidden inside the money exploded, he said.
The same branch, located on State Street across from American International College, was robbed Tuesday afternoon just before 5 p.m.
A suspect in that robbery, 35-year-old Sean Moynihan, of Holyoke, was arrested the following day in downtown Easthampton.
People with information are asked to call the Springfield Police Detective Bureau at (413) 787-6355. Those who wish to remain anonymous may text a tip via a cell phone by addressing a text message to “CRIMES,” or "274637," and then beginning the body of the message with the word "SOLVE."