The ringgit closed lower against the US dollar for the second consecutive day due to weak buying support, a dealer said.
At 5pm, it stood at 3.3270/3300 against the greenback versus Monday's 3.3070/3100.
Commenting on the slide, Governor Tan Sri Dr Zeti Akhtar Aziz said Bank Negara Malaysia would step in to stabilise the weakening ringgit if the market was disruptive and disorderly.
She said exporters should not rely on exchange rates to gain competitive advantage, instead they must focus on other measures such as enhancing productivity and being innovative.
"From time to time, we will see the ringgit strengthening because of shifts in liquidity in global financial system," she added.
Meanwhile, the ringgit also traded lower against all other major currencies.
It depreciated against the Singapore dollar to 2.5913/5941 from 2.5844/5888 on Monday and fell against the yen to 3.3959/3007 from 3.3570/3611 yesterday.
The local unit also weakened against the British pound to 5.1592/1648 from yesterday's 5.1497/1553 and declined against the euro to 4.4366/4419 from 4.4201/4251, previously.-- Bernama