BEIRUT (AFP) – More than a week of infighting between foreign-backed militants in Syria’s north has killed 58 people, a flareup that has allowed Al-Qaeda-linked terrorists to gain ground, a war monitor said Tuesday. The clashes since October 8, in a volatile area near the Turkish border, have been among the deadliest in years, killing 48 militnats and 10 civilians, the so-called Syrian Observatory for Human Rights said. Among the 48 militants killed, 28 were members of the Hayat Tahrir Al-Sham alliance (HTS), which is led by Al-Qaeda’s former Syria affiliate, according to the Britain-based war monitor.