New Orleans police Tuesday night were investigating the fatal stabbing of an 83-year-old man inside his senior living apartment in the 3600 block of Tulane Avenue, a police spokesman said.

The man, whose name is being withheld pending notification of family, was found by a security guard at about 7 p.m. He had been stabbed multiple times and died on the scene, Officer Garry Flot said in a news release.

The security officer found the man after a family member knocked on the man’s door and received no answer, the release says.

The Coroner’s Office is investigating the exact time and cause of death, the release says.

Anyone with information is asked to contact Crime Stoppers at (504) 822-1111 or 1 (877) 903-7867.