Security forces battled armed men in Damascus on Monday, killing the attackers as one blew himself up, state news outlets reported, in a type of clash that remains rare in the capital even after more than four years of war in Syria . Websites that are for and against the government displayed photographs of a column of smoke towering above six-story apartment houses in Rukineddine, a northern district of central Damascus. A pro-government radio station reported that opposition fighters had crossed an agricultural area from insurgent-held suburbs, perhaps to carry out an attack on Berniah Street, a major thoroughfare near the scene of the clash. A Twitter account associated with the Nusra Front, Al Qaeda’s affiliate in Syria, said that three members of the group had carried out the attack, which was on a military supplies and logistics headquarters. The Nusra Front has in the past […]