Gold prices eased on Tuesday, as a slightly firmer dollar and optimism over a potential ceasefire between Russia and Ukraine dampened investor demand for safe-haven assets.

President Donald Trump said he will speak with Russian President Vladimir Putin will speak on Monday over the phone to discuss a ceasefire between Ukraine and Russia. NBC News' Raf Sanchez reports on how the first in-person talks between Russia and Ukraine led to a prisoner exchange.

A Russian drone attack on a bus in northeastern Ukraine killed at least nine people and injured seven others, Ukrainian officials said Saturday, just hours after the two countries met for the first direct peace talk in three years.

Putin said efforts to end the war were "generally on the right track" and that Moscow was ready to work with Ukraine on a potential peace deal.