Liberal leader and Canadian Prime Minister Justin Trudeau campaigns for the upcoming election, in Riverview, New Brunswick, Canada October 15, 2019.

People with chained legs are pictured after being rescued by police in Sabon Garin, in Daura local government area of Katsina state, Nigeria October 14, 2019. REUTERS/Stringer

Fiona Hill leaves the Capitol building after giving a full day of testimony during the ongoing House of Representatives impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., October 14, 2019.

A damaged Samick piano sits near a flooded house, in the aftermath of Typhoon Hagibis in Yanagawamachi district, Date City, Fukushima prefecture, Japan October 15, 2019.

Advanced Space Suit Engineer at NASA Kristine Davis wears the xEMU prototype space suit for the next astronaut to the moon by 2024, during its presentation at NASA headquarters in Washington, U.S., October 15, 2019.

A riot police officer runs towards separatist demonstrators during clashes after a verdict in a trial over a banned independence referendum in Barcelona, Spain, October 15, 2019.

Democratic presidential candidates former Vice President Joe Biden and Senator Elizabeth Warren pose together at the start of the fourth U.S. Democratic presidential candidates 2020 election debate at Otterbein University in Westerville, Ohio U.S., October 15, 2019.

Hong Kong Chief Executive Carrie Lam arrives to deliver her annual policy address, as lawmakers shout protests, at the Legislative Council in Hong Kong, China, October 16, 2019.

A man makes earthen lamps which are used to decorate temples and homes during Diwali, the Hindu festival of lights, at a workshop in Ahmedabad, India, October 15, 2019.

Aircrafts leave trails in colours of Russian flag during a visit of Russian President Vladimir Putin in Abu Dhabi, United Arab Emirates October 15, 2019.

Officers carry a coffin of Alexei Leonov, the first man to conduct a space walk in 1965, during his funeral in Mytishchi, outside Moscow, Russia October 15, 2019.

Demonstrators shout slogans and gesture during a protest against the country's ruling elite and rejecting a December presidential election in Algiers, Algeria October 15, 2019.

A hiker walks in the Zillertal Alps during an autumn day near the village of Ginzling, Austria, October 15, 2019.

A leopard walks past an elephant in the Maasai Mara National Reserve, Kenya, October 15, 2019.

An indigenous woman walks in front of a wall covered with electoral propaganda, in El Alto, Bolivia October 15, 2019.

A separatist demonstrator wears an Estelada (Catalan separatist flag) decorated boots during a protest after a verdict in a trial over a banned independence referendum in Barcelona, Spain, October 15, 2019.

Buildings and construction sites are seen in Samjiyon County, in this undated picture released by North Korea's Central News Agency (KCNA) on October 16, 2019. KCNA via REUTERS.

Democratic presidential candidate and former Vice President Joe Biden points during the fourth U.S. Democratic presidential candidates 2020 election debate in Westerville, Ohio, U.S., October 15, 2019.

A firefighting aircraft tackles wildfires in Dibbiyeh village, south of Beirut, Lebanon October 15, 2019.

Actor Cuba Gooding Jr. leaves after his arraignment in New York State Supreme Court in the Manhattan borough of New York, U.S., October 15, 2019.

Scotland's First Minister Nicola Sturgeon reacts with the delegates following her speech at the SNP autumn conference in Aberdeen, Scotland, Britain October 15, 2019.

People spend the night in line to refill fuel in Maracaibo, Venezuela October 14, 2019. Picture taken October 14, 2019.

A Saudi woman holds a falcon as she participate for the first time in the 2nd Saudi Falcons and Hunting Exhibition in Riyadh, Saudi Arabia October 12, 2019. Image used for illustrative purpose

North Korean leader Kim Jong Un rides a horse during snowfall in Mount Paektu in this image released by North Korea's Korean Central News Agency (KCNA) on October 16, 2019. KCNA via REUTERS.

A view of a remote farm where a family spent years locked away in a cellar, according to Dutch broadcasters' reports, in Ruinerwold, Netherlands October 15, 2019.

A protester dribbles a basketball over pictures of China's President Xi Jinping and Hong Kong Chief Executive Carrie Lam during gathering in support of NBA's Houston Rockets' team general manager Daryl Morey, who sent a tweet backing the pro-democracy movement, in Hong Kong, China, October 15, 2019.