UPDATED, 3:29 p.m. with information from Waltham Police dispatch on Twitter:
Police say the suspect is described as a white man wearing beige shorts a Patriots shirt with Tedy Bruschi's name on it and a blue baseball hat. The suspect fled south on Crescent Street on a bicycle. He also has a beard.
Waltham Police are responding to a reported armed robbery at the BP gas station on Maple Street, according to Patch Correstpondent Stephen Walsh and Twitter reports.
The suspect allegedly displayed a handgun and fled on a bicycle, according to Walshm.
Stay tuned for updates as more information becomes available.