Detectives are quizzing a 17-year-old youth after a man was stabbed to death in Melbourne’s inner southeast.

Emergency services were called to an address in South Yarra just after 8pm on Saturday after the body of a 34-year-old Ripponlea man was discovered.

A youth, from Frankston, has since been arrested over the death.

He is assisting detectives with their inquiries.

Anyone who witnessed the incident or has information should contact police.

-with AAP