White House communications chief John Kirby confirmed on Monday the Biden administration plans to announce a new military support package for Ukraine later this week. Speaking to reporters at a daily press briefing, Kirby reiterated Washington wasn't involved in any way with the weekend rebellion by the Wagner Group.
Furthermore, he wasn't able to confirm if Wagner's leader Yevgeny Prigozhin was in Belarus. "We don't know where this goes and whether this is really the end" of the Wagner Group's military action, Kirby noted.
The United States doesn't have an indication that Russian President Vladimir Putin plans to use nuclear weapons amidst the uncertainty related to the Wagner Group or any other instability.