A jewelry store was robbed Sunday morning at Meadow Glen Mall by a masked man who made off with a stash of gold necklaces, according to Medford Police.

A male wearing a black hoodie and a mask with a skeleton's face entered Marcou Jewelers at the mall about 11:09 a.m. and smashed a jewelry case with a "small sledgehammer like tool," a police press release said.

"After smashing the front of the display case, the suspect reached in and grabbed a large quantity of gold chains," the press release said.

The store's manager chased the masked man until he exited the mall, fleeing on foot to the area of Linden Street, the press release said.

Police and the K-9 unit actively searched the area for the suspect as of Sunday afternoon, but he remained at-large Sunday evening, the press release said.

The suspect was described as "approximately 5’11”, wearing a black hooded sweat shirt, a black mask with a white skeletal type impression, and black pants," the press release said.

No video or photo surveillance was made available to the press.