Xinhua world news summary at 0100 GMT, July 24

Turkey has arrested a key aide to the Muslim cleric Fethullah Gulen, who was accused by Ankara of plotting the failed coup attempt, local media reported on Saturday.

Halis Hanci, designated as Gulen's henchman, came to Turkey two days before the coup attempt, the report said. (Turkey-Coup-Gulen-Aide)

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UNITED NATIONS -- UN Secretary-General Ban Ki-moon on Saturday condemned a terrorist attack in Afghan capital of Kabul that struck a peaceful demonstration.

Earlier on Saturday, at least 61 people were killed and more than 200 others wounded after an explosion ripped through a peaceful demonstration in western Kabul. (UN-Afghanistan-Terrorist Attack)

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WASHINGTON -- Presumptive U.S. Democratic presidential nominee Hillary Clinton and Virginia Senator Tim Kaine spoke for the first time as running mates at a rally in Miami, Florida on Saturday, two days before the party's convention kicks off in Philadelphia.

Kaine is "everything Donald Trump and Mike Pence are not," said Clinton, formally introducing her low-key Spanish-fluent ally to the crowd at Florida International University, where the student body is more than half Hispanic. (US-Election-Hillary Clinton)

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MANCHESTER -- Beleaguered Jeremy Corbyn, leader of Britain's main opposition Labour Party, launched his official campaign here Saturday afternoon aimed at propelling the party to victory in the 2020 general election.

Despite the party being involved in a civil war, Corbyn, estranged from most of his MPs, sees himself as a Prime Minister in waiting and the next occupant of 10 Downing Street. (Britain-Labour Party) Endi