Sean can report EXCLUSIVELY that P. Diddy was involved in a dramatic car accident outside the Beverly Hills hotel just less than two hours ago.

The rap mogul appeared to be arriving to the luxury hotel, when his chauffeured Cadillac Escalade was involved in a smash up with a Lexus RX at the Sunset entrance to the property.

Hotel employees quickly ran to assist Diddy, his driver and a second passenger, as well as those in the Lexus. Diddy and the second passenger were seen sprawled on the lawn in front of the hotel before being escorted in through the lobby.

An ambulance and police arrived shortly. It is unclear whether Diddy or anyone else sustained any serious injuries or who was at fault.

More news coming -- as well as photos and video of the incident ... stay tuned!