Violence resumed on the border between Lebanon and Israel on Thursday, triggering fears that the situation might head towards escalation, Lebanese security sources said. On the Lebanese side, at least one fighter from the Lebanese Shiite militia Hezbollah was killed in Aitaroun near the border with Israel, local media reported. Another fighter was also injured. The Israeli military said it had attacked Hezbollah infrastructure in the area. Hezbollah again claimed several attacks on targets in northern Israel on Thursday. The situation on the Israeli-Lebanese border has recently become signific…