Kfar Shouba, Lebanon, May 21 (SPA) - Lebanon's Hizbollah fighters fired shells at Israeli military posts in a disputed border area on Saturday after Israeli soldiers fired machine guns at three houses in south Lebanon, Reuters quoted witnesses as saying. There were no immediate reports of casualties from the second round of violence on the Lebanon-Israel border this month. --SPA 1527 Local Time 1227 GMT www.spa.gov.sa/263979