Iran’s Foreign Minister Abbas Araghchi will visit the Syrian capital Damascus on Sunday, before visiting Turkey as part of a regional tour, foreign ministry spokesperson Esmaeil Baghaei told state media on Saturday.Turkish foreign ministry sources earlier said Araghchi would visit Turkey on Monday. For all the latest headlines follow our Google News channel online or via the app.The Syrian army said on Saturday dozens of its soldiers had been killed in a major attack by opposition fighters who swept into the city of Aleppo in the northwest, forcing the army to redeploy in the biggest challenge to President Bashar al-Assad in years.Tehran has been a staunch ally of al-Assad during the civil war that broke out in 2011, sending thousands of fighters to Syria.Araghchi, in a phone call with his Syrian counterpart on Friday, accused the United States and Israel of being behind the opposition attack.During a phone call earlier on Saturday, Araghchi and his Russian counterpart Sergei Lavrov