Malaysia's economy expanded by 4.9 per cent in the second quarter (Q2) of 2015, said Bank Negara Governor Tan Sri Dr Zeti Akhtar Aziz.

"The global economy expanded at a moderate pace in the second quarter of 2015. Growth in most Asian economies moderated in the second quarter. Domestic demand continued to support growth in an environment of weak exports," she said at a press conference today.

Bank Negara also predicts that domestic demand will continue to be the key driver of the Malaysian economy growth.

"Private consumption is expected to continue to adjust to the introduction of the Goods and Services Tax (GST), although wage growth and stable labour market conditions would provide support to household spending," she said.

However, Zeti said inflation had increased to 2.2 per cent in the second quarter of 2015 with the impact of GST implementation.

Zeti also stressed that she will remain as the Bank Negara Governor until April next year, when her term expires.