The 1945 Anti-Jewish riots in Tripolitania was the most violent rioting against Jews in North Africa in modern times. From November 5 to November 7, 1945, more than 140 Jews were killed and many more injured in a pogrom in British-military-controlled Tripolitania. 38 Jews were killed in Tripoli from where the riots spread. 40 were killed in Amrus, 34 in Zanzur, 7 in Tajura, 13 in Zawia and 3 in Qusabat.
 

The British Military Administration were heavily criticized for acting too slowly to stop the rioting. Major-General Duncan Cumming, the British Chief Civil Affairs Officer, noted that Arab nationalism had been provoked by reports about Council of Foreign Ministers proposals "to hand the country back to Italian tutelage or to some other country with suspected Colonial designs," and that "It would seem that reports of the situation in Palestine and of anti-Jewish disturbances in Egypt finally touched off the pent-up excitement in the direction of the direction of the virtually defenseless Jews rather than against Italians.
 

As a result of the slow British response, a widely held belief amongst Libyan Jews is that the riots were instigated by the British in order to show that the Libyans could not rule themselves, or as some kind of warning to Libyan Zionists relating to the ongoing Jewish insurgency in Palestine. 
 

Together with previous persecutions of Jews by the Axis in Libya during World War II, the Tripoli rioting became a turning point in the history of Libyan Jews, becoming a central factor in the 1949–51 emigration organized by the Jewish Agency.
 

Some of the worst anti-Jewish violence occurred following the liberation of North Africa by Allied troops. From November 5 to November 7, 1945, more than 140 Jews (including 36 children) were killed and hundreds injured in a pogromin Tripoli. The rioters looted nearly all of the city's synagogues and destroyed five of them, along with hundreds of homes and businesses. In the aftermath about 4,000 Jews were left homeless, and 2,400 were reduced to poverty. Five synagogues in Tripoli and four in provincial towns were destroyed, and over 1,000 Jewish residences and commercial buildings were plundered in Tripoli alone.
 

As in the Iraqi case, the Tripoli massacre inaugurated a train of events that would demoralize and in a relatively short time dissolve the Libyan Jewish community. The event caused the beginning of the Libyan Jewish exodus. Thus, Jews began leaving Libya three years before the establishment of Israel and seven years before Libya gained independence.
 

Sources:
https://en.wikipedia.org/wiki/1945_Anti-Jewish_riots_in_Tripolitania