, Sept. 7 -- Ukrainian President Volodymyr Zelensky said Sunday that talks with U.S. envoys, Steve Witkoff and Jared Kushner, were "very substantive."

The two sides discussed resuming negotiations on the Russia-Ukraine conflict, security and economic guarantees for Ukraine, and a winter support package, Zelensky told reporters at a briefing following the talks.

"We are very much counting on both air defense and energy support, and we are counting on a serious volume and possibilities of using American LNG," Zelensky said.

Representatives from European countries including Britain, France and Germany joined their discussions at the third round, Zelensky said, adding the three sides had agreed to meet in the future to continue negotiation...