NEW YORK - Mad Men star Jon Hamm recently completed a course of treatment for alcoholism, his spokesman confirmed.

"With the support of his longtime partner (actress and film-maker) Jennifer Westfeldt, Jon Hamm recently completed treatment for his struggle with alcohol addiction.

"They have asked for privacy and sensitivity going forward," the spokesman said in a statement on Tuesday.

Website TMZ said Hamm, 44, checked into a high-end Connecticut facility for a 30-day programme at the end of last month.

Don Draper, his advertising executive character in the New York-set Mad Men, has also struggled with alcohol.

On Monday, the star attended the unveiling of a bench commemorating the series, ahead of the the April 5 premiere of its final and seventh season on the AMC network.

The bench, featuring a silhouette of Draper seated on the bench, is outside Time and Life Building in midtown Manhattan, which is the fictional home to Sterling Cooper and Partners, the advertising firm at the heart of the show.

It will be on display at the plaza through the summer, AMC said.

Cast members John Slattery, Elisabeth Moss, Christina Hendricks and January Jones and series creator Matthew Weiner also attended.

The bench is among attractions around New York City coinciding with the final season.