Two teens are being questioned by police after an 18-year-old was stabbed to death at a home in the Victorian town of Mildura.
Emergency services were called after the 18-year-old from Irymple suffered a stab wound just after 1am at a house on Limpidi Drive.
Despite efforts to revive him, he died at the scene.
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A 17-year-old girl and an 18-year-old man, both from Mildura, are "assisting investigators with their enquiries", police said.
"The exact circumstances surrounding the incident are yet to be determined but parties involved are known to each other," a statement from Victoria Police said.
Mildura is located in Victoria's northwest, directly across the Murray River from New South Wales.