NEW YORK - Police are looking for six teenagers in connection with the alleged assault of an off-duty firefighter in Manhattan over the weekend.

Investigators say the group was harassing an elderly couple, when the firefighter noticed and stepped in.

It happened Saturday morning near East 86th Street and Third Avenue on the Upper East Side.

The teens allegedly knocked the firefighter to the ground and continued to attack him.

Police say he suffered a concussion and broken teeth.

Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-8477, or text CRIMES and then enter TIP577, or visit