By Sukanya Mitra and Ashitha Shivaprasad

Aug 18 (Reuters) – Gold prices came under pressure on Tuesday from higher Treasury yields and a spike in ‌oil prices, while traders awaited minutes of the U.S. Federal Reserve’s ‌July policy meeting for clues on the outlook for interest rates.

Spot gold was down 0.5% at $4,391.14 ​per ounce, as of 0423 GMT, while U.S. gold futures for December delivery dropped 0.6% to $4,446.70.

Yields on the benchmark 10-year U.S. Treasury note extended gains, raising the opportunity cost of holding non-yielding bullion. [US/]

Oil prices also edged higher after Iran said it ‌would shift to a “fully offensive” ⁠military posture following a breakdown in efforts to negotiate a permanent end to the war with the United States, while ⁠Washington ruled out extending a temporary ceasefire agreement. [O/R]

Oil prices will remain one of the key factors keeping gold under pressure as situation in the Middle East continues to ​look uncertain, ​ANZ analyst Soni Kumari said.

Traders’ expectations around ​Fed policy rates are going ‌to be important for gold, with a focus on technical levels, Kumari added.

Elevated energy prices tend to raise inflationary fears and bolster expectations of higher interest rates by the Fed. While gold is typically seen as a hedge against inflation, higher interest rates tend to diminish bullion’s appeal.

However, market pricing for a September ‌quarter-point hike flipped to a nearly 65% ​chance of a “hold” after unexpected job losses in ​July, lower-than-expected consumer price inflation and ​weaker retail sales.

Investors are also awaiting minutes from the Fed’s ‌most recent policy meeting, with the ​release scheduled for Wednesday.

Spot ​gold may test a support at $4,381, a break below could open the way toward the $4,320 to $4,351 range, according to Reuters technical analyst Wang Tao.

Among ​other metals, spot silver ‌slipped 1% to $65.11 per ounce, platinum lost 1.2% to $1,748.56, while palladium ​fell 1.2% to $1,317.01.

(Reporting by Ashitha Shivaprasad and Sukanya Mitra in Bengaluru; ​Editing by Subhranshu Sahu and Sherry Jacob-Phillips)