Negotiations between US and Ukrainian officials over the prospect of a partial ceasefire in the war with Russia have started Sunday in Saudi Arabia, part of the push by US President Donald Trump to end the conflict, now in its fourth year. The talks are expected to focus on the technical aspect of a "partial, and limited ceasefire for 30 days" with negotiators looking to draw up a list of energy facilities in Ukraine that would be protected during this period, FRANCE 24's Catherine Norris-Trent said, reporting from Kyiv.