NEW YORK - Police are investigating a murder-suicide on the Upper East Side.

Police responded to an apartment building located at 222 East 93rd Street Wednesday afternoon.

When they arrived, they found two men with gunshot wounds to the head.

Police believe one of the men shot his 61-year-old father before turning the gun on himself.

Police say the suspected shooter's mother was home at the time. 

The victims' names have not yet been released.