Syria Tells Rebels on Mobile Phones: "Game Over" Syrian authorities on Thursday sent text messages over cell phones nationwide with a message for rebels fighting President Bashar Assad's regime: "Game over." The messages signed by the Syrian Arab Army also urged the rebels to surrender their weapons and warned the countdown to evict foreign fighters has begun. The texts appear to be part of the regime's psychological battle against the rebels, but are highly unlikely to have any effect on fighters intent on toppling Assad. Syrians say they began receiving the messages a day after rebels bombed a military command center in Damascus - a major security breach of the heavily guarded capital that highlighted the regime's growing vulnerability in the face of a rebellion growing in confidence and capabilities. People with cellular subscriptions received the messages while those with prepaid phones did not, residents in the Syrian capital said. Despite the high-profile attack, the two sides have been locked in a stalemate after 18 months of conflict. Activists say the death toll since the conflict began in March last year has recently topped 30,000, with nearly two-thirds of the casualties reported in the past six months. In August, Syrian army helicopters dropped leaflets warning rebels in Damascus to hand over their arms and seek amnesty. Free Syrian Army fighter carry the body of their comrade away from the front line during clashes against Syrian Army in Aleppo, Syria, Wednesday, Sept. Many in the opposition have since taken up arms as the conflict morphed into a civil war that activists say has killed nearly 30,000 people. Over the past few months, the rebels have increasingly targeted security sites and symbols of regime power in a bid to turn the tide in the fighting. (AP Photo/Manu Brabo) Close In Geneva on Thursday, the United Nations' refugee agency said the U.N. and its partners are launching a revised appeal for $487.9 million to help support Syrian refugees. It said 2,000 to 3,000 refugees are crossing into neighboring countries each day. The UNHCR said 294,000 Syrian refugees are registered or awaiting registration in neighboring countries. Earlier Thursday, a Lebanese TV station broadcast footage showing Syrian government troops driving rebels from a building they had briefly occupied a day earlier after a double car bomb attack struck army headquarters in Damascus. The images from Lebanon's Al Manar TV station further demonstrated the scale of the security breach of the heavily guarded capital by rebels determined to topple the Assad regime. The fighters detonated car bombs that engulfed the army headquarters in flames, followed by three hours of gunbattles in and around the compound Wednesday. The government said four army guards were killed and 14 people were wounded, including civilians and military personnel. The carefully orchestrated attacks were the most dramatic security breach in the center of the capital Damascus since July, when rebels detonated explosives inside a high-level crisis meeting in Damascus that killed four top regime officials, including Assad's brother-in-law and the defense minister. They highlighted the regime's growing vulnerability, even as the 18-month battle to bring down Assad is locked in a stalemate. Al Manar's correspondent Youssef Shaeito said he accompanied Syrian troops on Wednesday as they stormed the compound after the explosions. In an interview with the station, he said he saw the bodies of three gunmen inside, suggesting clashes between government forces and rebels inside the building. The station is owned by the Lebanese Hezbollah militant group, a strong ally of Assad's regime. Syrian state-run media, however, reported only on the car bombs, omitting any mention of clashes inside the building.