LAPD bomb squad seen travelling east on 10 Freeway toward ONT

Earlier this afternoon, a convoy including the LAPD Bomb Squad and several blacked out SUVs was spotted travelling at a high rate of speed east on the 10 Freeway toward Ontario.

There’s been plenty of speculation as to why, but no answers from LAPD, other than a terse statement that the crew was headed to a sensitive situation.
Several Twitter users caught sight of the convoy as well including:
Any thoughts?
Here’s some newsroom speculation:
  • A situation at ONT, which is technically part of Los Angeles
  • Escorting a high level dignitary
  • Taking Michael Jackson’s body somewhere.
What do you think?