Toshiba has filed its delayed financial results, warning that the company’s survival is at risk.

The electronics-to-construction conglomerate made a loss of $4.8bn for April to December, the AFP agency said.

“There are events and circumstances that may bring about significant questions about the idea of [carrying on] as a going concern,” the firm said in a statement seen by AFP.

The results have not been approved by the firm’s auditors.

These latest financial results have already been delayed twice and raise the possibility that Toshiba could be delisted from the Tokyo Stock Exchange.

Toshiba is expected to hold a news conference later.

Nuclear woes

Toshiba, originally known for its consumer electronics products, has faced a series of difficulties.

It problems came to a head earlier this year, when it became clear its US nuclear unit, Westinghouse, was in financial trouble.

Westinghouse was put into Chapter 11 bankruptcy in March, which protects it from creditors while it undergoes restructuring.

This week, Taiwanese electronics manufacturer Foxconn was reported to be willing to pay up to $27bn (£21.7bn) for Toshiba’s computer chip business, a move which could help shore up the losses if it went ahead.

But that has not been enough to resolve Toshiba’s difficulties. The firm’s auditors, PriceWaterhouseCooper Aarata, have refused to sign off the company’s accounts, resulting in their publication being delayed twice.

Now, faced with a deadline, Toshiba has made the unprecedented move of publishing the results without the auditor’s approval.

Toshiba has warned that its net loss for 2016 could exceed one trillion yen ($9bn; £7bn) – one of the biggest losses in Japanese corporate history.

Toshiba is the world’s second-largest chip manufacturer, with its products used in data centres and consumer goods worldwide, including iPhones and iPads.