A holiday season toy drive at one of Boston’s busiest transportation hubs will benefit abused, neglected, and at-risk children in Boston, Chelsea, Revere, and Winthrop for the second year in a row, Suffolk County District Attorney Daniel F. Conley said today.

The annual toy drive at the South Station Train Terminal, organized by the Retailers of South Station and Equity Office, gets under way this morning and will collect unwrapped books, games, and toys from commuters and Secret Santas alike. Upon its Dec. 16 completion, the goods will be delivered to the Children’s Advocacy Center of Suffolk County for distribution to agencies countywide that work with child victims of physical and sexual abuse.

Last year’s South Station toy drive also benefitted the CAC, filling the stockings of thousands of mistreated boys and girls in the Boston area.

The Children’s Advocacy Center is the link between Conley’s office and dozens of law enforcement, non-profit, and social service agencies. Housed in the Family Justice Center of Boston, the Children’s Advocacy Center coordinates services and maximizes support for the youngest, most innocent victims of all. As Suffolk County DA, Conley serves on the CAC’s board of trustees.

“We’re so grateful to South Station and everyone who’s worked so hard to benefit the Children’s Advocacy Center again this year,” Conley said. “We were humbled by the community’s generosity last year and we’re deeply thankful to everyone who donates a book or a toy to brighten a young person’s holiday.”

Unwrapped donations may be dropped off at South Station’s Great Room, located at street level on the corner of Atlantic and Summer streets.