US President Joe Biden discussed the investigation into the origins of COVID-19 during a call on Thursday with his Chinese counterpart Xi Jinping, according to the White House.
"They did discuss a range of trans-national issues including COVID-19, and understanding its origins is of course a primary concern for this administration," White House press secretary Jen Psaki said on Friday. "Yes, it was a topic raised, but I'm not going to go into further detail."
Biden vowed last month to press China for answers over the origins of a pandemic that has now killed 4.8 million people worldwide. Intelligence agencies said they could not resolve a debate over whether the virus emerged from a Chinese research laboratory without Beijing's help.
Beijing denies the US accusation that it has not cooperated with the pandemic source investigation.
Thursday's 90-minute call was the first talks for the two leaders in seven months amid cool relations between the countries.
A US official who spoke to Reuters on Thursday said Biden had not planned to raise the prospect of US retaliatory action or "costs" if China refused to cooperate on the investigation or a range of other issues.
For his part, Xi told Biden that the two countries should respect each other's core concerns and properly manage differences, China's official Xinhua News Agency reported.
The outlet reported that Xi suggested to Biden that the countries should continue with contact and dialogue and cooperate on issues including epidemic prevention and control and economic recovery, as well as major international and regional issues like climate change.
Psaki described the call as respectful and candid, not lecturing or condescending, intended at keeping channels of communication open between the countries.
Climate and human rights were among the topics, she said, and though economic matters were discussed they were "not a major part" of the call.
"It wasn't a call that was intended to produce final outcomes," according to Psaki.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
"Had Distinct Misfortune Of Watching Trump's Speech": Biden Opinion: Opinion | A Gun At A Trump Rally Won't Stop Trump From Rallying For Guns "Stakes Are High, Choice Is Clear": Biden Vows To Stay In Presidential Race Israeli Jets Strike Yemen Rebels After Deadly Attack On Tel Aviv Woman On Scooter With 2 Kids Punched, Left Bleeding In Pune Road Rage Case After Retest, Haryana NEET Centre With Most Top Scorers Gave This Result... Imran Khan Being Kept In Filthy Circumstances In Jail, Says His Wife: Report 7 Bombs Defused In Imphal East District By Joint Army, Police Team 3.5-Magnitude Earthquake Hits Jammu And Kashmir Track Latest News Live on NDTV.com and get news updates from India and around the world.