BUFFALO, N.Y. (WIVB) — Authorities are investigating the death of a man found dead inside his Buffalo home, police announced on Friday.

Buffalo Police say they had to force their way into a home on the 200 block of Fillmore Avenue at about 10:45 a.m. at the request of neighbors who said they hadn’t seen their neighbor — who had previous medical issues — in some time.

Inside the home, police say they found the homeowner dead, prompting a call to homicide detectives. Officers are now working to learn when the man, who was in his 30s, had last been seen alive.

Authorities say they’re awaiting the results of an autopsy before announcing the cause of death.