Ocalan leads a separatist group that has fought for the creation of an independent Kurdistan.
Kurds live in lands controlled by Turkey, Iran, Iraq and Syria.
An estimated 20,000 people have died in the fighting of the past 15 years.
In Ottawa on Wednesday, Kurdish demonstrators hurled a gasoline bomb at a police line, setting one officer on fire.
The group of 400 protesters was fighting with a riot squad outside the Turkish Embassy.
In all, 10 police officers were injured in the fighting.
Ocalan was captured earlier this week while hiding in the Greek embassy in Kenya.
Turkey considers Ocalan an enemy because he's been fighting an ongoing battle for a separate Kurdish homeland.
He could face the death penalty.
On Wednesday, after rumors that Israel helped Turkish securities forces capture Ocalan, angry Kurds tried to occupy the Israeli consulate in Berlin.
Israeli guards opened fire on the protesters, killing three and injuring 16 others.
Israeli Prime Minister Benjamin Netanyahu is trying to calm Kurdish anger.
But he defends the killings and says his nation had nothing to do with Ocalan's arrest.
Ocalan has lived outside Turkey since 1980.
In recent months , Turkey has exerted diplomatic pressure on European countries to hand the rebel leader over for trial.
Syria, Lebanon, Russia, the Netherlands and Italy, among others, had expelled him . 1. Who leads a separatist group that has fought for the creation of an independent Kurdistan?
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