News in pictures: What happened across the world on May 20

Washington, May 20: In USA, India's Permanent Representative to the United Nations (UN) Asoke Mukerji attended the IBSA (India-Brazil-South Africa) Fund special event at the UN in New York.

In China, Russia's President Vladimir Putin and China's President Xi Jinping reviewed an honor guard during a welcoming ceremony at the Xijiao State Guesthouse ahead of the fourth Conference on Interaction and Confidence Building Measures in Asia (CICA) summit, in Shanghai.

In Nigeria, a car bomb exploded in the Christian neighborhood of Nigeria's second most populous and mainly Muslim city of Kano Sunday night, killing at least four people, police said. Five people were wounded. Police Superintendent Aderenle Shinaba said the car exploded Sunday night before the bomber reached his target of the busy restaurants and bars lining Gold Coast Street, indicating the casualties could have been much higher.

In London, Britain's Queen Elizabeth II visited the Thai exhibit during a visit to the Chelsea Flower Show.

OneIndia brings you news in pictures from across the world.

Russia's President Vladimir Putin, center, and China's President Xi Jinping

Russia's President Vladimir Putin, center, and China's President Xi Jinping, left, review an honor guard during a welcoming ceremony at the Xijiao State Guesthouse ahead of the fourth Conference on Interaction and Confidence Building Measures in Asia (CICA) summit, in Shanghai, China Tuesday, May 20, 2014.

Britain's Queen Elizabeth II, centre, visits the Thai exhibit

Britain's Queen Elizabeth II, centre, visits the Thai exhibit during a visit to the Chelsea Flower Show in London, Monday May 19, 2014.

Preet Bharara, U.S. Attorney for the Southern District of New York

Preet Bharara, U.S. Attorney for the Southern District of New York, discusses arrests in the malware BlackShades Remote Access Too, during a news conference in New York, Monday, May 19

Britain's Prince Harry, right, listens to Italian guide Laura Ciglioni

Britain's Prince Harry, right, listens to Italian guide Laura Ciglioni as he tours the Colosseum, in Rome, Monday, May 19, 2014. The Colosseum was the largest amphitheater of the Roman Empire and is today one of Rome's best know landmarks. Prince Harry is in Italy for a three-day visit to commemorate the 70th anniversary of the WWII's Monte Cassino battle.

The starting field for 98th running of the Indianapolis 500 IndyCar

The starting field for 98th running of the Indianapolis 500 IndyCar auto race poses on the start/finish line with the Borg-Warner Trophy at the Indianapolis Motor Speedway in Indianapolis, Monday, May 19, 2014. The race is Sunday, May 25.

People walk past the remains of a car used for a suicide bomb

People walk past the remains of a car used for a suicide bomb in Kano, Nigeria, Monday, May 19, 2014. A car bomb exploded in the Christian neighborhood of Nigeria's second most populous and mainly Muslim city of Kano Sunday night, killing at least four people, police said. Five people were wounded. Police Superintendent Aderenle Shinaba said the car exploded Sunday night before the bomber reached his target of the busy restaurants and bars lining Gold Coast Street, indicating the casualties could have been much higher.

Rob Pattinson, actress Sarah Gadon, actor John Cusack

From left, actor Rob Pattinson, actress Sarah Gadon, actor John Cusack, director David Cronenberg, actress Julianne Moore and actor John Cusack pose for photographers as they arrive for the screening of Maps to the Stars at the 67th international film festival, Cannes, southern France, Monday, May 19, 2014.

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