An Ellicott City man was fatally stabbed early Friday in what appears to be a domestic incident, police said.

The man was killed in his home in the 8100 block of Winding Ross Way around 4:20 a.m., according to Howard County police. Authorities have not released the victim’s identity, but said he is in his 50s.

Police said a 19-year-old man, who is believed to be a family friend, was at the house when officers arrived. He is in police custody but has not yet been charged, police said.

No other information about the incident, which remains under investigation, has been released.