Man 'dies in police custody' in Melbourne

The man appeared to be behaving erratically before he got out of the car and confronted police.

"Officers attempted to restrain the agitated man before he appeared to become unresponsive," Victoria Police said in a statement.

"Officers immediately called for medical assistance and performed CPR on the man however he couldn't be revived."

The death is now under investigation by detectives from the Homicide Squad.

The Professional Standards Command is also involved in line with standard practice "when a person dies in police custody", police said.