Syrian villagers pulled 13 bodies from a mass grave near the southern city of Daraa yesterday, residents said, and tanks pushed into a rural border area in the latest crackdown on protests against President Bashar Al-Asad. Daraa residents say hundreds of people have been missing since tanks and soldiers moved in last month to crush the cradle of opposition to Asad\'s 11-year rule. They said villagers digging in farmland in the outskirts of the city uncovered the decomposed bodies of Abdullah AbdulAziz Aba Zaid, 62, and four of his children, along with the bodies of an unidentified woman and her child.  Three residents said the six other bodies found there were those of unidentified men. It was not clear when they died, but Daraa residents say dozens of civilians were killed during the military assault on the city\'s old quarter. Syrian and international rights groups say Syrian forces have killed at least 700 civilians across the country since the first protests broke out in Deraa on March 18. The report on the mass grave could not be confirmed independently. Authorities have blamed most of the violence on armed groups backed by Islamists and outside powers, who they say have killed more than 120 members of the security forces.  Witnesses in Deraa said tanks were still positioned at main city junctions and in the outskirts, but authorities had shortened the curfew by three hours, allowing people out on the streets until 5.00 pm (1400 GMT). The official Syrian news agency said Assad met a delegation from Daraa and they discussed the \"positive atmosphere there as a result of cooperation between the residents and the army\". Further north, at least 15 tanks deployed around Arida, near the border town of Tel Kelakh which troops entered on Saturday after protests erupted against Asad, and their arrival prompted dozens of families to flee into neighbouring Lebanon. An activists\' protest group said at least seven civilians were killed in Tel Kalakh on Sunday when troops shelled the town and sniper fire killed one civilian yesterday, raising the death toll in the army\'s assault since Saturday to 12. The Syrian state news agency said five soldiers were killed in confrontations with armed groups in Tel Kalakh. One resident reported intermittent shelling of Tel Kalakh and bursts of machinegun fire on Monday, but the army appeared not to have advanced beyond the outskirts. \"Tel Kalakh is a ghost town. There are no doctors. Pharmacies are shut. Snipers are on the roof of the main hospital. Phones, water and electricity are cut,\" Mohammad Al-Dandashi told Reuters from the town by satellite phone. A few families from Hilat, another border village, streamed into Lebanon yesterday as did two wounded civilians from TelKelakh who were seeking medical care, family members said. For the past two months Syrian soldiers and police have been trying to quell demonstrations across the country calling for Assad\'s overthrow. They have tended to crack down on a flashpoint area for several days, using tank and rifle fire and mass arrests to subdue it, and then move on to another area. Troops backed by armour have now deployed in or around towns and villages across the southern Hauran plain, the central province of Homs and areas near the coast. Security forces have also tightened their grip on Damascus and its suburbs. The Lebanese army said it had sent reinforcements to the border, set up checkpoints and started intensive patrols to prevent \"infiltration activities on both sides\". International media organisations are largely banned from Syria, making it difficult to verify accounts of events there. Asad, who trained as an ophthalmologist, has used a mixture of repression and promises of reform to stem the protests, inspired by uprisings across the Arab world. The United States and the European Union have imposed targeted sanctions on Syrian officials and condemned the violence of the crackdown. Authorities said Asad intended to launch national dialogue talks, an offer rejected by opposition leaders and the main activists\' protest group, who say security forces must first stop shooting protesters and political prisoners must be freed.