Ousmane Sonko’s Arrest Sets Off New Round of Protests

Senegal’s government has dissolved the country’s main opposition party and detained its leader on charges of fomenting insurrection, setting off a new round of protests in which two people were killed on Monday.

A series of recent legal actions against the opposition leader, Ousmane Sonko, has triggered some of the worst political violence in recent history in Senegal, a seaside nation in West Africa.

Mr. Sonko, the 49-year-old mayor of the southern city of Ziguinchor, has galvanized…