Russia

The discussions included Kirill Dmitriev, a close adviser to Russian President Vladimir Putin, and Kushner, the son-in-law of US President Donald Trump, the people said.

The shift marks a major escalation in Moscow's hybrid warfare campaign, a Danish national security official told a Copenhagen homeland security conference.

"Maybe there's nothing there, maybe it's bigger than we thought, we don't know," Secretary of State Marco Rubio said, warning that the US was operating with limited information.

The goals of the operations included neutralizing armed groups operating in the area, destroying their supply networks and restoring "lasting security" and free movement for people and goods.

"There is updated intelligence indicating that Russia is preparing a massive attack," Zelensky said in his nightly video address.

The "Trump Liberty Line" is backed by a $130 million US government investment and aims to strengthen the two nations' energy security and independence.

"These shipments began precisely when Ukrainian strikes on Russian oil refineries were reducing processing volumes and creating a fuel shortage within Russia."

Early Russian reports wrote that Shipilova had contracted the pneumonia after breaking a vial of plague bacteria. 

President Volodymyr Zelensky said that Russia may have shared jet-drone technology with North Korea in return for its help in Ukraine

Ukrainian President Volodymyr Zelensky appeared to verify the NYT report in an interview with Reuters, adding that Ukraine would "respond in any way (we can)."