The ringgit slipped 0.5 percent to 3.1955 per US dollar from 3.1795 last Friday, Bloomberg data show. The currency also declined 1.1 percent against the Singapore dollar this week, the most since July.
Elsewhere, the Philippine peso fell 0.3 percent for the week to 41.825 per US dollar and the Indonesia rupiah declined to 9,205 from 9,065 a week earlier.
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