(Bloomberg) -- Gold fell to the lowest level in more than four months as the accord between Iran and world powers damped demand for a haven, while holdings in exchange- traded products extended declines. Silver sank to the lowest in more than 15 weeks, while platinum slid to a one-month low.

Bullion for immediate delivery lost as much as 1.5 percent to $1,225.55 an ounce, the lowest since July 8, and traded at $1,230.43 at 2:52 p.m. in Singapore. Silver slid as much as 1.3 percent to $19.6114 an ounce, the lowest since Aug. 8.

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