The United Nations has strongly protested to Israel for violating the sovereignty of Lebanon after an investigation showed that Israeli soldiers had crossed the Lebanese border in a recent incident.Paolo Serra, the commander of the UN Interim Force in Lebanon (UNIFIL), told UN spokesperson office on Friday that "it is clear that the presence of Israeli soldiers in Lebanon in violation of the Blue Line constitutes a serious breach of the terms of UN Security Council resolution 1701." UN Security Council Resolution 1701, which brokered a ceasefire in the war of aggression Israel launched on Lebanon in 2006, calls on Tel Aviv to respect Lebanon’s sovereignty and territorial integrity. The UN mission launched an investigation on Wednesday after the Lebanese army said that an Israeli patrol had crossed the UN-demarcated Blue Line border before a blast occurred. Israeli's army has confirmed that four of its soldiers were wounded in the incident. The UNIFIL says it is working with the Lebanese army to determine on which side of the border the explosion happened. Serra said the UN mission has called on the Israeli regime to fully cooperate with the investigations. The Lebanese government has decided to file a complaint with the Security Council over the Israeli regime’s repeated violations of its border and abduction of a Lebanese citizen. On Friday, Lebanon’s caretaker Foreign Minister Adnan Mansour tasked the country’s Ambassador to the UN Nawaf Salam with lodging the complaint. Mansour also said the incident “reveals again the Israeli enemy’s hidden intensions through its infiltration of Lebanese territory.” The Israeli military frequently violates Lebanon's airspace, territorial waters and border.