The family of missing 22-year-old Zachary Marr released images Wednesday of him outside the Boston Public Market, where he apparently went after leaving a nearby bar last weekend. Police, meanwhile, continued to canvass the area and search nearby waters.

But as of Wednesday afternoon, there remained no sign of Marr, who lives in Harvard and who disappeared from the Bell in Hand Tavern near Faneuil Hall around 1:50 a.m. Saturday after he stepped outside to smoke a cigarette.

“There’s no information to indicate foul play played a role,’’ Boston police spokesman Officer James Kenneally said. Investigators are searching the city and Boston Harbor, Kenneally said.

Divers searched the water near the Zakim Bridge Wednesday, said police spokeswoman Officer Rachel McGuire.

While authorities have no evidence that Marr drowned, searching nearby waterways is a decision that reflects recent cases and the city’s geography.

Downtown Boston is surrounded by several bodies of water including the Charles River, the Charles River Basin, the Inner Harbor, and Fort Point Channel, making the likelihood of someone falling into water greater than in other places.

The last several days have been especially hard for the family, which remains hopeful.

“We’re just putting our minds together. We’re trying to track his possible whereabouts,’’ said his father, Matthew Marr. “I just want him home.’’

Jan Ransom can be reached at jan.ransom@globe.com. Follow her on Twitter at @Jan_Ransom.