Indonesia's central bank said the rupiah's fall against U.S. dollar was still under control, after the currency slid to its weakest level in more than six months on Thursday following a surprise cut in interest rates the day before.

Indonesia unexpectedly reduced its key interest rate in its first monetary policy decision this year, moving to bolster economic growth even after the local currency recently weakened beyond the key level of 16,

INDONESIA’S rupiah fell to its lowest in more than five months on Wednesday ahead of the central bank’s monetary policy decision later in the day, while the Thai baht stalled around a seven-week low as dollar remains dominant.

Indonesia’s central bank defied the expectations of practically the entire market when it cut interest rates this week, deepening a period of uncertainty for government bond yields. Most Read from BloombergThese Homes Withstood the LA Fires.