Rossair Charter (Adelaide International) has grounded its entire fleet until further notice following the crash of one of its Cessna (twin piston) 441 Conquest IIs near Renmark, South Australia earlier this week.

According to The Australian, the aircraft crashed soon after take-off en route for Adelaide International, about 250km away. Those killed include Rossair's chief pilot, an inductee, and a Civil Aviation Safety Authority (CASA) representative.

Rossair has said it will cooperate with CASA and emergency authorities in their investigation into the accident.

Rossair Charter operates a fleet of E120s, Beech 1900Ds, and Cessna 441 Conquests.