Adelaide police always get their man, woman - or marsupial

Police in Adelaide have shown their lighter side, revealing how an Australian icon's early morning antics nearly developed into a siege.

Residents of a house in Paradise phoned police around 3.30am after hearing what they believed was a prowler on the roof.

Officers attended and cordoned off the property while they carried out a search of the roof.

"Police immediately identified the culprit and arrested a large three-year-old koala from nearby scrub land," a police spokesperson said.

"The furry fiend was questioned and formally cautioned by attending officers before being released without charge."

The offending koala who gave Adelaide residents an early morning fright.

The offending koala who gave Adelaide residents an early morning fright.