Jovan Divjak, a Serbian colonel who defected to Bosnia’s army at the start of the 1992-95 war between the two sides was detained Thursday evening at the Vienna airport on Serbia’s request.

On Saturday — the third day of protests — people yelled “Give us Jova back!” in front of the Austrian embassy before moving to the country’s Presidency to demand “Go, bring Jova home!” Many wore T-shirts with his picture and the word “Sara-Jova.” Serbia is accusing him of attacking a Serb-led Yugoslav Army convoy withdrawing from Sarajevo. The case was dismissed by two international courts.