Viktor Orban, Hungary's prime minister, leaves a booth after marking his ballot at a polling station in Budapest, Hungary, on Sunday, April 3, 2022.

Viktor Orban, Hungary's prime minister, leaves a booth after marking his ballot at a polling station in Hungary.

The images are from Bloomberg.

Polls opened across Hungary early Sunday as voters faced a choice between taking a chance on a diverse, Western-looking coalition of opposition parties or renewing the mandate of nationalist Prime Minister Viktor Orban.

The contest is expected to be the closest since Orban took power in 2010, thanks to Hungary's six main opposition parties putting aside ideological differences to form a united front against his right-wing Fidesz party.

Recent polls show a tight race but Fidesz has a slight lead, so it's likely that undecided voters will decide the winner on Sunday.

The Associated Press

Images show thick black smoke covering the skies of Odesa, a port city on the Black Sea coast.

A woman is walking in the southern port city of Odesa as smoke fills the sky after a series of loud explosions.

Bulent Kilic is pictured.

According to an interior ministry official, air strikes hit the Black Sea port of Odessa early Sunday morning, after Kyiv warned that Russia was trying to consolidate its troops in the south.

Bulent Kilic is pictured.

Journalists and residents watch as smoke fills the sky.

Bulent Kilic is pictured.

Sam Meredith.

The deputy prime minister said work will continue on Sunday to evacuate people from Mariupol.

Seven buses will try to get closer to Mariupol, accompanied by the International Committee of the Red Cross.

People were to be evacuated from Mariupol and Berdyansk.

A convoy of humanitarian workers turned around on Friday because it was no longer possible to facilitate the safe passage of civilians.

Sam Meredith.

Smoke rises after an attack by Russian forces.

Bulent Kilic is pictured.

The city council of Odesa reported a missile attack on an infrastructure facility after a series of explosions.

Petro Obukhov, a member of the Odesa city council, said via Facebook that the enemy launched a missile attack on the city. We won't forget or forgive anything.

It came after multiple journalists reported smoke billowing into the sky on the Black Sea coast following a series of loud explosions in the early hours of Sunday. CNBC can't independently verify this information.

The Washington Post Correspondent in Odesa said there were loud explosions in the city. The windows in my hotel room shook. It was not clear what that was.

The smoke was billowing into the sky above Odesa after a series of explosions.

Sam Meredith.

The President of Ukraine, Volodymyr Zelenskiy, addresses the members of Dutch parliament via video link as Russia continues to attack his country.

The Ukrainian Presidential Press Service.

Russian forces are trying to capture areas in the east and south of the country according to the president.

What is the goal of Russian troops? They want to capture both parts of the country. What is our goal? Zelenskyy said Protect us, our freedom, our land and our people.

Russian forces had reserves to increase pressure on the east, even though Ukrainian forces had regained control over the communities.

Zelenskky said that the defense was strengthened in the eastern direction and in Donbas.

Sam Meredith.

A Ukrainian soldier walks past the remains of a helicopter that was shot down.

Chris Mcgrath is a photographer.

The U.K. Ministry of Defence said in its daily intelligence update that Russian air activity has increased over southeastern Ukraine in the past week as invading forces shift their efforts to that part of the country.

The ministry said Friday night that Ukrainian air defense units have been unable to locate and destroy Russian warplanes and helicopters.

Russia's inability to find and destroy air defence systems has hampered their efforts to gain broad control of the air.

The port city of Mariupol has been largely destroyed by the Russian siege.

Russian ground forces have been pushed back from the capital.

Ted Kemp.

Russia's attack on Ukraine continues as the Defence Minister of Ukraine visits service members.

The Ukrainian Defence Ministry.

Since the start of the Russian invasion, the city of Kyiv has been under Ukrainian control.

There was no immediate comment on the claim that the whole of the Kyiv region was liberated from the invaders.

Russia has left behind a lot of damage, including wrecked tanks, destroyed buildings, and dead bodies. The retreat is part of peace talks, according to Russia.

Even as Russian forces leave parts of the country, there are still dangers, according to a video address by the president. Some troops were laying mines. CNBC has not been able to verify the report.

Repko.