Former FBI Director James Comey is sworn in before testifying to the Senate intelligence committee on Thursday, June 8, one month after US President Donald Trump fired him. Comey discussed the FBI's Russia investigation, his private interactions with Trump as well as how he handled the Hillary Clinton email probe. All eyes on Comey Alex Brandon/AP

Cecilia Wessels posted to Facebook this photo of her husband, Theunis, mowing their yard in the town of Three Hills in Alberta, Canada, on Friday, June 2. The photo shows a tornado looming over Theunis in the background. "Yes, he did know it was there," Cecilia Wessels told CNN . "He told me, 'I'm keeping an eye on it.' " Cecilia Wessels/AP

This NASA image from Friday, June 2, shows a pair of relatively small active regions on the sun. Images were taken over 42 hours in a wavelength of extreme ultraviolet light. NASA

Ariana Grande wipes a tear as she performs during the One Love Manchester Benefit Concert in Manchester, England, on Sunday, June 4. The concert aimed to raise money for those affected by the bombing that killed 22 people and wounded more than 100 at Grande's May 22 show. Kevin Mazur/One Love Manchester/Getty Images

Police help civilians escape the Parliament building in Tehran, Iran, on Wednesday, June 7, during twin attacks. At least 12 people were killed when six attackers mounted simultaneous gun and suicide bomb assaults on Iran's Parliament building and the tomb of the republic's revolutionary founder, in one of the most audacious assaults to hit Tehran in decades. Iran's Revolutionary Guards said Saudi Arabia supported ISIS in the deadly twin attacks. OMID WAHABZADEH/FARS NEWS AGENCY/EPA

British Prime Minister Theresa May works on the election campaign bus, commonly known as the "Battle Bus," as it travels through Staffordshire, England, on Tuesday, June 6. After one of the most tumultuous years in British political history, polls opened in the country's general election on Thursday, June 8. The snap election was called by May with a focus on securing a mandate to take into Brexit talks. Ben Stansall/WPA Pool/Getty Images

Bill Cosby arrives with actress Keshia Knight Pulliam at the Montgomery County Courthouse in Norristown, Pennsylvania, on Friday, June 5, before the opening of Cosby's sexual assault trial. Cosby, 79, faces three counts of aggravated indecent assault . The comedian has pleaded not guilty to the charges and has said he does not plan to testify. Mark Makela/Getty Images

This image, taken by Gabriele Sciotto near London's Borough Market, shows two attackers after they were shot by London police on Saturday, June 4. Eight people were killed and at least 48 were injured Saturday night when three attackers rammed a vehicle into pedestrians on London Bridge and then went on a stabbing spree at bars and restaurants at nearby Borough Market. Gabriele Sciotto

A Palestinian man spins a lit firework during Ramadan in Deir Al-Balah, a Palestinian city in central Gaza, on Sunday, June 4. Ramadan is the Islamic holy month of fasting during which Muslims may not eat or drink during daylight hours. MOHAMMED SABER/EPA/REX/Shutterstock

Attorney Joseph Cataldo talks to his client, Michelle Carter, at Taunton Juvenile Court in Taunton, Massachusetts, on Monday, June 5. Carter is on trial for involuntary manslaughter for allegedly encouraging her boyfriend, Conrad Roy III, to commit suicide, according to prosecutors. Almost three years ago, Massachusetts teenager Roy was found dead from carbon monoxide poisoning in his pickup truck in a Kmart parking lot. Faith Ninivaggi/The Boston Herald/AP

Former US President Barack Obama, left, and Canadian Prime Minister Justin Trudeau eat dinner together in Montreal on Tuesday, June 6. According to The Obama Foundation , the pair "discussed their shared commitment to developing the next generation of leaders." The Obama Foundation

Betty Sakala, a refugee from South Sudan's Central Equatoria state, laughs after being shown a photo of her daughter Mary as she waits to have Mary examined at a mobile health clinic run by the International Rescue Committee in Bidi Bidi, Uganda, on Monday, June 5. According to the International Rescue Committee , "famine has been declared in parts of South Sudan gripped by civil war and economic turmoil." Ben Curtis/AP

A man performs during the halftime show of Game 3 of the NBA Finals in Cleveland on Wednesday, June 7. The Golden State Warriors defeated the Cleveland Cavaliers 118-113. Jason Miller/Getty Images

Firefighters battle a blaze near Kranshoek, South Africa, in the Western Cape province on Wednesday, June 7. Around 8,000 people have been evacuated from a scenic coastal town in South Africa's famous Garden Route to escape fast-moving wildfires that have already killed nine people, Western Cape local government spokesman James Brent Styan told CNN Ewald Stander/AP

Hundreds gather for a memorial in London's Potters Field Park on Monday, June 5, for victims of the city's June 3 terror attacks Jack Taylor/Getty Images

Boys swim in a stream during a heatwave in Islamabad, Pakistan, on Monday, June 5. Caren Firouz/REUTERS/Newscom

This handout photo from the Indian Space Research Organization shows an Mk III-D1 Geosynchronous Satellite Launch Vehicle taking off from the Satish Dhawan Space Centre in Sriharikota, India, on Monday, June 5. INDIAN SPACE RESEARCH ORGANI/REX/Shutterstock

Former Secretary of State Hillary Clinton arrives for the Medgar Evers College commencement with Dr. Rudolph Crew, president of the college, in Brooklyn, New York, on Thursday, June 8. Clinton delivered the commencement address. Richard Drew/AP

A visitor views the ''Yayoi Kusama: Life Is the Heart of a Rainbow'' exhibition at the National Gallery Singapore on Tuesday, June 6. Then Chih Wey/Xinhua/ZUMA Wire

Ananya Vinay poses with her trophy after winning the annual Scripps National Spelling Bee in Oxon Hill, Maryland, on Thursday, June 1. The 12-year-old from Fresno, California, beat 291 other spellers in this year's contest. The winning word was "marocain," a dress fabric that is made of ribbed silk or rayon and a filling of other yarns. Manuel Balce Ceneta/AP

Muslims attend Iftar dinner during the holy month of Ramadan in Dubai, United Arab Emirates, on Monday, June 5. Iftar is the first meal eaten by Muslims after sunset during Ramadan. Mahmoud Khaled/Anadolu Agency/Getty Images

A demonstrator is arrested during protests in Portland, Oregon, on Sunday, June 4. Hundreds of supporters of US President Donald Trump converged on Terry D. Schrunk Plaza for an event billed as a "Trump Free Speech" rally, but they were slightly outnumbered by a mixed assemblage of counterprotesters across the street. At least 14 people were arrested. Scott Olson/Getty Images

Buildings and construction sites are seen among fog in Rizhao, China, on Friday, June 2. Stringer/REUTERS/Newscom

A Soyuz MS-03 capsule lands in a remote area outside the town of Dzhezkazgan, Kazakhstan, on Friday, June 2. The capsule was carrying the International Space Station crew of Russia's Oleg Novitskiy and France's Thomas Pesquet. Shamil Zhumatov/REUTERS/Newscom