A classified and updated document presented to the US lawmakers and White House has claimed that the COVID-19 virus emerged from a lab leak, reports Wall Street Journal newspaper.

COVID-19 virus likely was a result of lab leak, US energy department’s report says

The US Department of Energy said today said the security functions at the National Nuclear Security Administration(NNSA) was "not impacted" after confirming that it "found that the malware has been isolated to business networks only, and has not impacted the mission essential national security functions of the Department.

Russia link? US Department of Energy targeted, nuclear security 'not impacted'

SolarWinds compromised: How hackers attacked software used by US government departments