Washington April 22 (UNI) Lebanese President Joseph Aoun said negotiations are ongoing to extend the ceasefire, warning that no party will be permitted to obstruct security measures or undermine stability."Preserving civil peace at this stage of our country's history is a red line," Aoun said on X, adding that he would "spare no effort to end the abnormal situation in Lebanon".Lebanon's ambassador to the US, Nada Haddad Maaouad, will represent Lebanon at a preparatory meeting at the US State Department on Thursday, where she will raise the extension of the ceasefire and demand that Israel stop demolition operations in southern Lebanese villages and towns.Aoun said negotiations are anchored on four conditions: stopping Israeli aggression, ac...