A 60-year-old father killed his 18-year-old daughter, then himself early Saturday inside an Allentown home, according to city police.

The victims were identified as Maria and Jose Santos, who both lived in the home in the 600 block of North Jefferson Street where they were fatally shot about 1:45 a.m., according to the Lehigh County Coroner. Both were pronounced dead shortly after 3 a.m.

Both died of a gunshot wound to the body, the coroner said in a news release. The death of Maria Santos, the younger victim, was ruled a homicide while Jose Santos' death was a suicide.

Allentown Assistant Chief Gail Struss said the girl's brother, who is in his 20s, was home when the shots were fired and called police. Jose Santos left behind a note confirming the murder-suicide, Struss said.

The coroner's office and Allentown police are continuing the investigation with the assistance of the Lehigh County District Attorney's Office, the release said.

Another, unrelated Allentown shooting overnight -- this one about 9:30 p.m. Friday in the 400 block of North Law Street -- left a man critically injured.

Steve Novak may be reached at snovak@lehighvalleylive.com. Follow him on Twitter @type2supernovak and Facebook. Find lehighvalleylive.com on Facebook.