Reply #16: AP link here:

[VolcanoJen]

MSNBC just disputed this information, curiously...

http://customwire.ap.org/dynamic/stories/S/SAUDI_EXPLOSION?SITE=OHDAY&SECTION=HOME&TEMPLATE=DEFAULT

Excerpt:

RIYADH, Saudi Arabia (AP) -- An explosion rocked the Saudi capital Riyadh just before midnight Saturday, and smoke could be seen rising from the area of the blast, a U.S. official said.

Police cars headed toward the blast, which appeared to have happened in the western part of the city. The U.S. official said the explosion occurred outside the diplomatic quarter in the southwestern part of the city.

The extent of the damage was not immediately clear, and it wasn't known if there were any casualties.

A western diplomat said he got a call from a friend who reported seeing smoke rising from a building on the other side of the diplomatic quarter near an area where the palaces of the royal family's senior princes are located.