Rex Airlines' future uncertain in the wake of ASX trading halt ...

Rex Airlines is currently in an ASX trading halt "pending making a material announcement", a spokesperson says.

The prime minister says the airline is important to regional Australia and the government is seeking more information.

The trading halt, which has no affect on Rex flights, will remain in place until Wednesday or until the airline makes a market announcement.

Regional Australian airline Rex has suspended trading on the Australian stock market pending an upcoming announcement.

The ASX-listed company halted trade on Monday with the pause expected to remain in place until tomorrow or until Rex releases a statement to the market.

Asked whether the federal government would help keep Rex in the air, Prime Minister Anthony Albanese said it was "an important airline" and he was "very hopeful that they'll see their way through".

"We have sought information from the airline through [Minister for Transport] Catherine King, who came to see me about this today … we will continue to monitor what happens there," he said. 

"There are a range of communities in New South Wales, in Queensland, in South Australia and right around the country that rely upon Rex … so it's important," he said.

The prime minister said the airline had come through COVID and received substantial government support, "and we will remain vigilant when it comes to this airline and continue to work with them".

"We want to see not just those jobs maintained, but we also want to see those communities continue to have access to aviation, that's so important for their economy and for their way of life," he said.

The trading halt has no affect on Rex flights.

It is the nation's third largest carrier.

More to come.