The turmoil in Ukraine has swept aside its president, brought about the release a prominent opposition leader and raised fears the country could break apart.
After the bloodshed in the streets of Kiev last week -- the deadliest violence Ukraine has suffered since its independence 22 years ago -- the political twists and turns came thick and fast over the weekend.
As a new week begins, uncertainty has taken a hold in the divided nation as Ukraine tries to reshape its political landscape.
An arrest warrant has been issued for ousted President Viktor Yanukovych over the killings of civilians, a government official said Monday. But officials don't know where he is.
Here's what you need to know to get caught up:
Who's in charge?
It depends whom you ask.
The Parliament voted to oust Yanukovych, a key demand of protesters. It appointed seasoned lawmaker Oleksandr Turchinov as a new speaker who will take on Yanukovych's duties until new elections in May.
Turchinov, a longtime ally of opposition leader Yulia Tymoshenko, has promised a new interim government by Tuesday.
"We have a legitimate source of authority in Kiev, which is the democratically elected Parliament and a democratically, constitutionally elected speaker of parliament, who is acting president," Polish Foreign Minister Radoslaw Sikorski, who helped broker a peace deal between the government and the opposition, said on CNN's Fareed Zakaria GPS.
But Yanukovych claims he's still in charge, saying he was forced to leave Kiev because of a "coup."
"I don't plan to leave the country. I don't plan to resign. I am the legitimate President," he said Saturday in a televised broadcast.
But acting Ukrainian Interior Minister Arsen Avakov said Monday that arrest warrant has been issued for Yanukovych.
"As of this morning, a criminal case on mass killings of civilians has been opened. Yanukovych and several other officials have been placed on the wanted list," Avakov wrote Monday on his Facebook page.
Where exactly is Yanukovych?
Unclear. He made his TV broadcast from Kharkiv, a pro-Russian stronghold near the border. And he reportedly tried to board a charter plane Saturday night in the eastern city of Donetsk, but was turned away because he didn't have the right papers.
On Sunday, he was staying at his private residence in Balaklava in the southern region of Crimea, Avakov said, adding that Yanukovych is believed to traveling in three vehicles with his chief of staff.
But Avakov said he doesn't know where Yanukovych was Monday.
He's definitely not in his lavish presidential compound near Kiev that thousands of Ukrainians have now been able to explore after he fled. People have been roaming around the mansion and its vast grounds, staring at the opulence in which Yanukovych lived, including peacocks, vintage cars and a huge galleon-style riverboat for parties.
Does the former president have any support left?
His political party appears to have turned against him, saying it blames him for the "robbery and deception" of the nation. It accused Yanukovych of making illegal orders that led to casualties, financial debt and shame in the eyes of the world.
But it's notable that Yanukovych was recently in Kharkiv, in eastern Ukraine. It's his traditional support base and a predominantly Russian-speaking region.
People in the east, the country's industrial heartland, tend to look to Russia as Ukraine's key ally. Many of them are suspicious of the Europe-leaning views of those in western Ukraine, who were at the heart of the protests against Yanukovych that filled central Kiev for months.
The demonstrations began after Yanukovych scrapped a European Union trade deal and turned toward Russia for financial support.
Does this mean Ukraine is in danger of splitting?