April 29 (Reuters) - Gold prices were little changed in volatile trading on Wednesday, as investors awaited comments from U.S. Federal Reserve Chairman Jerome Powell to assess the impact of a war with Iran on the economy amid stalled peace talks.

Spot gold rose 0.1 percent to $4,597.07 an ounce by 0243 GMT, after falling in the previous session to its lowest level since April 2.

U.S. gold futures for June delivery settled at $4610.20.

Investors expect the US Federal Reserve to leave interest rates unchanged at the end of its two-day meeting, which concludes later on Wednesday.

Efforts to end the conflict with Iran have reached a dead end, with US President Donald Trump expressing his dissatisfaction with Tehran's latest proposals, which he said informed the United States that it was "in a state of collapse" and was in the process of reorganizing its leadership.

Meanwhile, Brent crude remains above $110 a barrel amid reports that the United States will extend its blockade of Iranian ports.

Investors will also focus on decisions from other central banks this week, including the European Central Bank, the Bank of England and the Bank of Canada.

Standard Chartered said in a note, "We expect gold price action to be fragile in the near term, but we still see prices gaining momentum in the coming months to touch up to unprecedented levels again, as the underlying factors (geopolitical tensions, tariffs and trade uncertainty) that support the rise remain in place."

Silver rose 0.8 percent to $73.64 an ounce in spot trading, while platinum fell 0.4 percent to $1,930 and palladium dropped 0.4 percent to $1,453.91.