BOSTON -- An East Boston teen is charged with armed robbery and other offenses in connection with the robbing and carjacking of a Revere pizza deliveryman Friday evening, Suffolk County District Attorney Daniel F. Conley said Monday.

Toby Ryan, 17, was arraigned Monday in Chelsea District Court on charges of armed carjacking, armed robbery, unlawful possession of a firearm, and assault and battery with a dangerous weapon. Ryan was additionally charged in East Boston District Court with receiving a stolen motor vehicle after he was observed allegedly running from the vehicle near his Vallar Road home about an hour later.

Ryan was held on $1,500 cash bail for the carjacking, armed robbery and gun charges. He was ordered held on $5,000 for the receiving stolen motor vehicle charge.

A 14-year-old boy from East Boston was also taken into custody in connection with the incident. He expected to be arraigned Tuesday in the Juvenile Session of Chelsea District Court.

Revere police responded to Sumner Street shortly after 6:30 p.m. Friday for a report of an armed robbery. They spoke to the victim, a Domino’s Pizza deliveryman, who stated that he had been robbed at gunpoint by two teens. The assailants, he said, demanded his cash and his car keys. The victim provided the officers with a general description of each assailant.

While at the scene, the officers were approached by a witness who told police that the teens were named "Toby" and "Macho," and that both lived in an East Boston housing development.

Revere police contacted Boston police, who were familiar with a duo who matched the names given by the witness and the descriptions given by the victim. Revere Police also provided their Boston counterparts with the description and plate number of the victim’s stolen Toyota Corolla.

At about 7:30 p.m., Boston police saw the stolen car traveling in the area of Vallar Road. The officers attempted to stop the vehicle, but said the driver sped off toward Waldemar Avenue before coming to an abrupt halt. Two occupants dashed from the vehicle, briefly eluding the officers.

Officers familiar with the area and its residents travelled to the home of a 14-year-old male who used the nickname Macho. The teen's mother said he was not at home but was with a friend named Toby.

The officers then went to Ryan's home, with whom they were familiar from previous encounters. Ryan was at his Vallar Road home, allegedly sweating profusely but denying having left the apartment. He was taken into custody.

Other officers continued to search for "Macho" until they found him in the lobby of a Waldemar Avenue building one street away. He was taken into custody as well.

Ryan will return to court on Dec. 15.