Policemen stand by on a main street in Riyadh March 11, 2011. Police flooded the streets of the Saudi capital on Friday looking to deter a planned day of demonstrations and small protests were reported in the east of the oil-rich country that has been rattled by pan-Arab unrest. REUTERS/Fahad Shadeed (SAUDI ARABIA.

Two suspected al-Qaeda militants blew themselves up early Saturday in southern Saudi Arabia after police surrounded them inside a government building.

Reports on casualties were not immediately available.

Saudi Arabia launched a massive crackdown on Al-Qaeda following a spate of deadly attacks in the kingdom from 2003-2006.

The incident comes a day after al-Qaeda linked militants attacked a border post near the border with Yemen. Al Arabiya News obtained on Friday exclusive pictures of the bodies of the gunmen who attacked the border post killing one Saudi border security officer and one Yemeni soldier.

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