Week in pictures: 22-28 October 2017 - BBC News

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JANE BARLOW/ PA
At the University of St Andrews, students take part in a shaving foam fight as part of traditional Raisin Monday celebrations.




MARY TURNER/ REUTERS
Two Sumatran tigers known as Achilles and Karis eat pumpkins at London Zoo in preparation for Halloween.




HERIKA MARTINEZ/ AFP/ GETTY IMAGES
Accompanied by her dog, a young girl watches the Not Walls demonstration by US activists. It took place in front of the wall that divides Ciudad Juarez, Mexico from Sunland Park, New Mexico.




ABIR SULTAN/ EPA
Police use a water cannon to disperse ultra-Orthodox Jewish demonstrators as they block the entrance to the Knesset, the Israeli parliament, during a protest against army recruitment in Jerusalem, Israel.




ZOHRA BENSEMRA/ REUTERS
Rohingya refugees line up to get food in the Balukhali refugee camp near Cox's Bazar, Bangladesh.




TONY MCDONOUGH/ EPA
While visiting Rottnest Island, off the west Australian coast, the state minister for tourism, Paul Papalia, tries to get a selfie with a quokka.




CARLOS JASSO/ REUTERS
During a Catrinas parade in Mexico City, a child is dressed up as a "Catrina", a Mexican character also known as "The Elegant Death."




THOMAS PETER/ REUTERS
Ushers throw their hats in the air in Tiananmen Square before the start of the closing session of the 19th National Congress of the Communist Party of China, in Beijing, China.




MARTA PEREZ/ EPA
In Barcelona, a Catalan pro-independence flag waves over hundreds of Catalan university and secondary students protesting against the application of the Spanish Constitution's Article 155. In a crisis, this allows the government in Madrid to take over from the leaders in Catalonia without their permission.




DAI KUROKAWA/ EPA
As Kenya goes to the polls again, a supporter of the opposition coalition the National Super Alliance and its presidential candidate Raila Odinga, is covered in police tear gas during a protest in Kibera slum, Nairobi.