Misratan Rebellion

The Misratan Rebellion was a minor conflict within Italian Libya that lasted from the end of 1957 to the early months of 1958. It involved Arab rebels who sought to rid Libya of colonial forces, against Italian troops. The rebellion was sparked by a riot in Misrata, caused by a street brawl between Italian colonists and Arab natives, which ended in a number of Italians being killed or forced out of the city.
Seeking to take advantage of the internal disorder brought about by the Mussolini-led coup, many Arab leaders in Misrata hoped they could use the riot as a launching point for a general revolt throughout Libya, which might then lead to foreign intervention from the United Arab Republic as well as the for the rebellion to grow to Tunisia. As it turned out though the chaos from the coup was short-lived, and before long Italian troops had landed en masse in Libya, thus dousing the flame of rebellion elsewhere in the colony. 
The rebellion became a brutal urban conflict between the cornered Arabs and the fresh Italian troops. The number of civilian casualties was enormous, and many saw this as an attempt by Duce Bruno Mussolini to show he wouldn't allow dissent against his governance. At the end of the rebellion all rebels were executed and most of the surviving Arab civilian population was dispersed from the city. It is estimated that some 30,000 civilians were killed in the rebellion, and another 8,000 rebels slain or executed.