Police and paramedics responded swiftly, cordoning off the area as authorities begin investigating the case
US benchmark West Texas Intermediate was down 9.3 percent at $22.76 a barrel in morning Asian trade while Brent, the international benchmark, slipped 4.1 percent to $31.48 a barrel.
Prices have been struggling at near two-decade lows due to falling demand as economic activity grinds to a halt amid the virus outbreak, with the situation compounded by a price war between Saudi Arabia and Russia.
Exporting group OPEC, which includes Riyadh, and their OPEC+ allies including Moscow, as well as other key non-members, started holding talks via video conference on Thursday afternoon.
Venezuela's state oil company PDVSA has said Saudi Arabia and Russia had proposed to reduce production by around 10 million barrels per day, and Caracas supported the move.
US President Donald Trump meanwhile said producers were "getting close to a deal", following a conference call with Russian President Vladimir Putin and Saudi leader Crown Prince Mohammed bin Salman.
But Bloomberg News reported that a tentative agreement for production cuts had been endangered after Mexico refused to participate in the curbs, and talks would continue Friday.
Stephen Innes, chief market strategist from AxiCorp, said that even an agreement for a cut of 10 million barrels per day "won't be enough to balance the market", given the current high levels of oversupply.
But he said producers were principally focused on stopping prices collapsing into single-digit, and such a deal "should be sufficient enough to handle the oversupply with the available storage capacity around the world".
Police and paramedics responded swiftly, cordoning off the area as authorities begin investigating the case
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