A man is in hospital under police guard after a house fire in Melbourne's north.
Emergency services were called to the Rhodes Parade unit in Pascoe Vale about 4.50am on Tuesday, following reports a man had smashed a window.
Police then received reports there was a fire at the property and a man was seriously injured.
The man was taken to hospital with critical injuries. He is under police guard.
A woman, believed to be known to the man, escaped injury.
Detectives are investigating the fire, which they believe was suspicious.