Waltham police said they have arrested six people -- four teenagers and two adults -- in the various downtown robberies that happened recently.
Authorities warned residents last week of a spike in unarmed robberies in the neighborhood just east of Moody Street. The robberies typically happened at night over the past month and a half, police said. One victim was attacked from behind by three men and was left with serious head injuries, police said.
But authorities are now saying they have found their perpetrators. Four teenagers, aged 15 to 17, were linked to four different robberies. All four have been charged with unarmed robbery, police said in a statement.
Two Waltham residents -- Yesnir Espinal, 20 and Robert Jackson, 20 -- were linked to two other robberies downtown and subsequently arrested, police said.
Espinal is charged with armed robbery, carrying a gun illegally, conspiracy to commit armed robbery, and threatening to commit murder; Jackson was charged with unarmed robbery and assault and battery, according to the statement.
Police said two purses were also snatched in the upper Main Street area on Wednesday morning. Authorities believe the two incidents to be related to each other, but not to the other robberies.
Anyone with any information are urged to call the Waltham Police Department at 781-314-3600, or the anonymous tip line at 781-314-3636.
Jaclyn Reiss can be reached at email@example.com