Russian-installed officials in four occupied regions of Ukraine reported huge majorities of votes in favor of joining Russia as the United States planned a U.N. resolution condemning the referendums as shams and Moscow remained defiant.

The United States was also preparing a new round of sanctions against Russia should it annex Ukrainian territory and a $1.1 billion arms package for Ukraine that will be announced soon, U.S. officials said.

U.S. Secretary of State Antony J. Blinken said the United States and its allies remained committed to European energy security, after Germany, Sweden and Denmark said attacks caused major leaks from two Russian energy pipelines. It remained far from clear who might be behind the leaks.