(JTA) — Boston police, friends and neighbors and local Jewish groups have joined the search for the teenage son of Boston Globe columnist Jeff Jacoby.

Caleb Jacoby, an 11^th grader at Boston’s Maimonides School, has been missing since about 12:30 on Monday afternoon, according to reports.

“We are so deeply, deeply grateful for everything being done to reunite us with our beloved son Caleb,” Jacoby, who is Jewish and often writes on Jewish and Israel issues in his column, tweeted late Tuesday night.  For many years, near his oldest son’s birthday, Jacoby wrote a special column called “Letters to Caleb.”

The Combined Jewish Philanthropies, Maimonides School and Young Israel of Brookline, as well as other local Jewish organizations, have all joined in the search for the boy. Fliers with the boy’s photo have been distributed throughout the Boston area and around the world via social media.

Caleb Jacoby “took his studies very seriously. He took life seriously. He wasn’t easygoing,” his Hebrew teacher Efrat Libschitz told MassLive.com.