Three Massachusetts teenagers charged with stealing a gun from a retired police officer are heading to court.

The Sun of Lowell reports that the boys, all age 15 or 16, are scheduled to appear in Lawrence Juvenile Court on Monday to answer to charges of possession of a firearm. One of the teens is also charged with larceny of a firearm and possession of ammunition without a proper permit.

Their names were not released because of their age. All are from Lowell. Authorities say the gun was stolen from inside a locked car in Dracut on June 5 and reported to police the next day.

Interim Lowell Police Superintendent Jonathan Webb says because the vehicle was locked and the firearm's locking mechanism was engaged the retired officer was not charged.