Three people are dead and a girl has been taken to hospital with critical injuries after a shooting and a stabbing in Melbourne on Thursday night.
- The girl was injured and a woman was killed in a stabbing at Mill Park
- Two people were killed in a separate shooting at Mordialloc
- Two men are in police custody over the separate killings
Homicide detectives were first called to the stabbing at Mill Park in the city's north about 7:50pm.
Officers found a man, woman and a girl at the scene, who detectives believe all knew one another.
The woman died from her injuries and the girl was taken to hospital in a critical condition.
The man, who was also critically injured, was taken to hospital under police guard.
Emergency services were called to the Kellaway Crescent home around 7:50pm.Man arrested over double shooting
Less than two hours later, police were called to Mordialloc in Melbourne's south-east, after reports of gunshots at a property on McDonald Street.
When the officers arrived, they found two people with critical injuries who died at the scene.
Police have arrested a man over the Mordialloc shooting.(ABC News)
Following a search of the area, a man was arrested and interviewed by police.
Police said they were not looking for anyone else over the Mordialloc shooting.
Fatal house fire under investigation
Earlier in the evening, emergency services were called to a house fire on Wilshire Court in Endeavour Hills.
Firefighters arrived shortly after 6:30pm to find the house fully engulfed in flames.
They were able to rescue one person from the home, who was treated by paramedics, but found a man dead inside.
Police are still investigating the cause of the fire.
Anyone with information on the three fatal events is urged to contact Crime Stoppers.