Today in Pictures: May 7

See Saturday's best photos.

Russian soldiers take part in the rehearsal for a military parade in Moscow on May 7, 2016. The Victory Day parade on May 9 marks the 71st anniversary since the capitulation of Nazi Germany.

Alexander Zemlianichenko / AP

A member of the Royal Canadian Mounted Police is silhouetted by the setting sun as he is surrounded in smoke from wildfires south of Fort McMurray, Alberta, on Highway 63 on May 6. Investigators have not figured out what sparked the wildfires that erupted in the heart of Canada's oil sands region on Sunday and have so far forced 88,000 people to flee.

PHOTOS: Entire City Flees Raging Wildfire in Canada 

Jonathan Hayward / Canadian Press via AP

Britain's incoming London Mayor Sadiq Khan gestures during his swearing-in ceremony at Southwark Cathedral in cental London. London's new mayor Sadiq Khan thanked voters for choosing "unity over division" as he was elected Saturday, becoming the first Muslim leader of a major Western capital.

Bus Driver's Son Becomes London's First Muslim Mayor 

YUI MOK / Pool via AFP - Getty Images

Supporters of presidential candidate Rodrigo Duterte cheer at a rally in Manila.

Front-running candidate Rodrigo Duterte is known for his profanity-laden speeches and has been likened to Republican presidential candidate Donald Trump. He made international headlines last month when he said that an Australian missionary who was gang raped and killed during a 1989 prison siege was so beautiful that he "should have been the first" to assault her. The Australian and U.S. ambassadors criticized that comment, and Duterte told them to shut up.

MOHD RASFAN / AFP - Getty Images
A girl wears a Red Army uniform at an event in remembrance of the upcoming Victory Day, marking the anniversary of the Allied victory over Nazi Germany, in the southern city of Ashdod, Israel. AMIR COHEN / Reuters
People gather around a fire under Gonzen peak in Balzers, Liechtenstein, late on May 6. GIAN EHRENZELLER / EPA

A fan wears a hat before the 142nd running of the Kentucky Derby horse race at Churchill Downs on May 7, 2016, in Louisville.

Photos: Derby Ladies Rock Elegant Hats

David J. Phillip / AP
Sydney's central business district is blanketed in smoke from large-scale back burning of bushland by fire authorities in the nearby Blue Mountains of Australia. Stephen Coates / Reuters
A subway worker walks away after a train departed the station in central Pyongyang, North Korea. Damir Sagolj / Reuters
Relatives mourn next to a grave on May 6, 2016 in Kilis, during the funeral ceremony of 5-year-old Nisa Done Sezer who was killed the day before after a rocket hit the house. One person was killed and seven more wounded when rockets fired from Syria slammed into the Turkish border region of Kilis, which has been regularly targeted by jihadists this year, the Dogan news agency said. ILYAS AKENGIN / AFP - Getty Images

People visit the ruins of the historic Syrian city of Palmyra ahead of a musical performance on May 6. Syrian troops backed by Russian air strikes and special forces on the ground recaptured the UNESCO world heritage site from Islamic State group fighters in March. The Syrian regime put on a patriotic celebration in Palmyra Friday, with flag-waving and military music in a place where just last year jihadists carried out mass executions.

The Week in Pictures: April 28 - May 5 

Omar Sanadiki / Reuters