Industry experts are sounding the alarm about possible insider trading after a flurry of oil trades that took place minutes before a post by President Donald Trump about the war in Iran.

Between 6:49 and 6:51 a.m. Eastern time on Monday, an estimated $760 million in oil futures contracts changed hands, according to the Wall Street Journal, despite no apparent news that would have prompted the 6,200 trades over the two-minute period.  

Then, 15 minutes later, Trump posted about postponing attacks on Iranian energy sites, citing “productive” conversations with the country’s leadership. The post led to a drop in global oil prices and a spike in the S&P 500 stock index.

"The massive spike in volume of trades right before that post is certainly enough to raise eyebrows, and I think to launch an investigation into what was behind that," Stephen Piepgrass, a partner at the law firm Troutman Pepper Locke, told CBS News.