Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. December 23, 2011 Syrian State TV Reports Deadly Suicide Attacks at Security Sites VOA News Syrian state television says al-Qaida militants may be responsible for a pair of suicide bombings outside two government security buildings in Damascus on Friday that killed several civilains and soldiers. State television reports said two suicide bombers used vehicles packed with explosives to attack a state security building and another security facility. Witnesses reported hearing heavy gunfire at the facilities after the explosions. The attacks come as opposition groups prepared to hold mass protests against an Arab League observer mission that began arriving in Syria Thursday to see whether the government follows through on its promise to stop attacks on anti-government protesters. Opposition groups say the government is only allowing the monitors as a stalling tactic to prevent a new round of international sanctions. They have called for nation-wide protests following midday prayers on Friday using the slogan "Protocol of death, a license to kill," referring to the Arab League plan signed by Syria last week. Meanwhile, Syria appeared to be widening its violent crackdown against opposition demonstrators. Activists said at least 21 protesters were killed Thursday during raids in the central city of Homs and the northern province of Idlib. Opposition groups say government forces have killed at least 250 since Monday, one of the bloodiest periods since the uprising began in March. The advance team of Arab League observers that arrived Thursday is laying the groundwork for a larger group of delegates that is set to arrive over the coming weeks. The Arab League has also been urging Syria to withdraw its security forces from neighborhoods and begin talks with the opposition. The Syrian government has blamed much of the deadly violence on "gunmen" and "terrorists." On Thursday, Syria said more than 2,000 security force members had been killed in the nine-month uprising. The United Nations says at least 5,000 people have been killed during the uprising. Join the conversation on our social journalism site - [1]Middle East Voices. Follow our Middle East reports on [2]Twitter and discuss them on our [3]Facebook page. References 1. http://middleeastvoices.com/ 2. http://twitter.com/VOAMiddleEast 3. http://www.facebook.com/pages/VOAMiddleEastVoices/124360240958667?%20%20%20%20v=wall .