President Joe Biden has been briefed on the crashed helicopter transporting Iranian President Ebrahim Raisi and other top Iranian officials, according to multiple reports.

Biden was briefed by aides on the crash, but a senior administration official told the Associated Press that officials have not learned much more about the crash than what is being reported by state media. The conditions of the passengers remain unknown.

The president’s briefing comes after conflicting reports that the helicopter, which went down in a rural mountainous area of Iran’s East Azerbaijan province amid heavy fog, rain, and cold weather, has been found.