Dec 7 (Reuters) - Australian shares extended losses on Wednesday after its central bank crushed hopes of a pause in monetary policy tightening and flagged further rate hikes, with investors eyeing the third-quarter GDP data due later in the day.

The S&P/ASX 200 index fell 0.7% by 2338 GMT. The benchmark fell 0.5% on Tuesday.

The Reserve Bank of Australia (RBA) raised interest rate by 25 basis points to a 10-year high of 3.1% and stuck with its projection of further rate hikes to cool inflation.

Investors' now await the third-quarter gross domestic product (GDP) data, with analysts expecting a growth of 0.7% in the quarter before the country's current account fell into deficit for the first time in three years.

Local energy stocks slipped 1.8% and were among the top losers on the benchmark. Oil and gas majors Woodside Energy and Beach Energy slid 2% and 6.2%, respectively.

Separately, Santos fell 0.3% even as it targeted higher shareholder returns and announced a further $350 million increase in share buyback.

Tech stocks lost 2%, tracking losses of its Wall Street peers as skittish investors fretted over Federal Reserve rate hikes and further talk of a looming recession.

ASX-listed shares of Block Inc dropped 2.8%, while network-as-a-service provider, Megaport, slid 4.4% and was among the top losers on the sub-index.

Financials gave up 1.4% with the so called "Big Four" lenders losing more than 1% each.

Gold stocks fell 0.6% even as bullion prices firmed slightly. The country's largest gold miner Newcrest Mining gave up 0.6%.

Bucking the trend, miners advanced 0.8% with iron ore behemoths BHP and Rio Tinto jumping 1.3% and 2.8% respectively.

New Zealand's benchmark S&P/NZX 50 index fell by 0.4% to 11,583.79 points. (Reporting by Navya Mittal in Bengaluru; editing by Uttaresh.V)