According to the report, a militia backed by Tehran launched the enemy drone towards the Al-Tanf base, an outpost near the Syria-Jordan border.
The report added that US officials have not found evidence indicating that Iran directed the attack.
Later on Monday, US national security advisor John Kirby commented on the reports the drone that killed three servicemen was "mistakenly identified" as an American unmanned aerial vehicle (UAV) by saying he will let the Pentagon "talk about the forensics."
"I'm sure that they are already picking it apart and trying to figure out how this happened," Kirby highlighted.
On Sunday, three US soldiers had been killed and 34 others injured in a drone attack on a US military base on the Jordanian-Syrian border.
President Biden pinned the blame on unspecified Iran-backed militant groups, while also saying the US was still gathering the facts. Jordanian cabinet spokesman Muhannad Mubaidin said that the strike targeted the US's Al-Tanf base in Syria, not a base on Jordanian territory.
Iran has nothing to do with the drone attack on a US military base, Iranian state-run news agency IRNA reported, citing an Iranian official.