The Civil Aviation Safety Authority (CASA) said it had suspended operations of all GippsAero GA8 planes in Australia and all Australian-registered GA8 planes flying overseas from July 20 through Aug. 3.

The GA8 single-engine aircraft, built in Australia by GippsAero, is typically used for skydiving, tourism, air patrols, medical evacuations and humanitarian missions in remote locations, according to Mahindra Aerospace's website.

There are 228 GA8 planes worldwide, 63 of which are registered in Australia, CASA said.

Mahindra Aerospace, a unit of India's Mahindra and Mahindra Ltd, said CASA's move was precautionary during the preliminary investigation in Sweden, with which GippsAero was cooperating.

"The preliminary investigation has not identified the root cause of the incident," GippsAero Chief Executive Keith Douglas said in an emailed statement.

Nine Swedes were killed when a GA8, dubbed the Airvan 8, crashed during a skydiving trip near Umea in northern Sweden on July 14.

CASA said it has been working closely with Swedish authorities and the European Union Aviation Safety Agency (EASA), which has also issued an emergency directive to European GA8 aircraft owners and operators to suspend operations except for ferry flights.

(Reporting by Sonali Paul, Editing by Sherry Jacob-Phillips and Christopher Cushing)