The US sees the possibility of a limited ground incursion into Lebanon as Israel moves forces to its northern border, a senior administration official and a US official told CNN on Saturday. At the same time, the officials stressed that Israel does not appear to have made a decision on whether to carry out a ground incursion. The US assessment was based on the mobilization of Israeli troops and the clearing of areas in what could be preparation for the launching of a ground incursion, one of the officials told CNN . Earlier Saturday, IDF spokesman Peter Lerner said the IDF was preparing for the possibility of a ground incursion, but it was only one option being considered. US President Joe Biden called for a ceasefire in Lebanon on Saturday when asked by reporters if an Israeli ground incursion into Lebanon was inevitable. "It's time for a ceasefire," Biden told reporters in Rehoboth Beach, Delaware, as quoted by Reuters . Related articles: IDF operated in Syria to prevent Turkish takeover Syrian Foreign Min. on Israeli strikes: 'Unjustified escalation' Eliminated Hezbollah terrorist was assisting Hamas IAF strikes Hezbollah terrorist in Beirut Biden’s comments came hours after IDF Chief of Staff Herzi Halevi confirmed on Saturday that Nasrallah was eliminated in a strike on a Hezbollah command center in Beirut on Friday. Nasrallah was eliminated together with Ali Karki, the Commander of Hezbollah’s Southern Front, and additional Hezbollah commanders.