Military Action:
300 Marines arrive in Beirut to replace those killed in Sunday's bombing; IDF patrol attacked with grenades and automatic weapons near Tyre.
Casualties:
General strike and demonstrations in South Lebanon to protest killing of 3 civilians in Sarafand; revised figures in bombings are 214 US, 40 French killed, 20-30 US, unknown number of French missing; 2 IDF soldiers killed near Tyre, IDF fatalities in Lebanon now total 524.
Political Responses:
US and Other Countries: US Marine Commandant Kelley arrives in Beirut, says he is totally satisfied with security procedures at Marine base prior to Sunday's bombing; Senate Armed Services Committee, after closed session with Defense Secretary, considers Marines' security in Beirut inadequate; US military force invades Grenada.