Michael Kelleher

Michael Kelleher, a 23-year-old Southborough man, went missing after attending a Celtics game in Boston on March 29, 2017.

(Southborough Police Department)

The body found in the Muddy River in Boston on Sunday does not appear to be that of missing Southborough man Michael Kelleher, according to police.

Police have not yet identified the body, which was discovered in the area of 1200 Boylston St., near Fenway Victory Gardens, around 12:15 p.m. Sunday.

WHDH News reports that Boston police said, however, that the body does not appear to be of Michael Kelleher.

Fox 25 News also reported that the body is not Michael Kelleher.

Boston police say it does not appear the body found in Back Bay Fens belongs to Michael Kelleher, who went missing after a Celtics game. — Eric Kane (@EricKaneTV) April 10, 2017

Boston police did not immediately return a call seeking more information.

Kelleher, 23, went missing on March 29 after attending a Boston Celtics game. In the days since he went missing, divers have searched waterways in Boston to look for him.

Kelleher was seen leaving the TD Garden in Boston around 9 p.m. that night. He did not show up at a co-worker's car after the game ended.

His mother, Lori Tavella Kelleher, has met with investigators as the search is ongoing.

Kelleher's cell phone was last pinged in the area of 138 Tremont St. in Boston around 9:40 p.m. on March 29, which is about an 18-minute walk from the TD Garden.

Kelleher was last seen wearing brown pants, a Celtics jersey, gray sweatshirt and a Celtics hat. He is 6 feet 2 inches tall and 180 pounds with a thin build, brown hair and blue eyes.

Anyone with information about Kelleher is asked to contact the Southborough Police Department at 508-485-2147 or the Boston Police Department at 617-343-4328.