Cricket Australia have said that they are investigating a Twitter outburst from opening batsman David Warner.

A series of expletive-filled posts that attacked two senior Australian cricket journalists - Robert Craddock and Malcolm Conn - appeared on Warner's account, @davidwarner31. It is not yet known if his account was hacked.

"Cricket Australia is aware of comments made on David Warner's Twitter account overnight," CA said in a statement on Saturday.

"Cricket Australia is attempting to contact Warner and will continue to investigate the matter. Cricket Australia will make further comment once it has conducted a thorough investigation."

Warner is currently playing for Delhi Daredevils in the Indian Premier League.