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Running great Kipchoge Keino handed himself over to police in Kenya on Thursday and is under arrest, set to face charges of corruption and abuse of office that threaten the reputation of one of track and field’s most revered figures.

The 78-year-old Keino, former Kenyan sports minister Hassan Wario and two other former sports ministry officials surrendered to police to meet a 06:00 deadline.

They are due in court on Friday to plead to the charges relating to the misuse of more than half a million dollars meant to fund Kenya’s team at the 2016 Rio de Janeiro Olympics. Keino was president of the Kenyan Olympic committee at the time.

Keino is a two-time Olympic champion, an honorary member of the International Olympic Committee and was one of the first athletes to be inducted into track and field’s hall of fame in 2012.

He was the forerunner for generations of Kenyan distance-running champions, winning gold in the 1 500 meters at the 1968 Mexico City Olympics.

He is accused of playing a role in the misappropriation of more than $545 000 of government money set aside for Kenyan athletes at the Rio Games two years ago. Keino and six other current and former Olympic and government officials were accused by prosecutors of the embezzlement of more than $200 000 and misuse of more than $300 000.

Relating to the misuse, prosecutors allege the seven wasted more than $150 000 on unused air tickets to Rio, overpaid allowances amounting to nearly $150 000, and incurred tens of thousands of dollars of other expenditure on “unauthorised persons” – people who were not Olympic officials or athletes.

Kenya’s The Daily Nation newspaper reported that Keino will be charged with giving his son nearly $25 000 of Team Kenya’s money for an air ticket to Brazil and spending money in Rio. The exact charges against Keino and the four who reported to police on Thursday morning will be published when they appear in court.

Three other officials, current Olympic committee secretary general Francis Kinyili Paul, Rio team manager Stephen Arap Soi and former sports ministry official Richard Ekai, appeared in court on Monday. They were charged with multiple counts of corruption and abuse of office. They pleaded not guilty and were granted bail, with a judge saying the trial of all seven would start November 16.

Keino, possibly Kenya’s most respected sportsman, handed himself over to police at about 05.30, the Daily Nation reported, to beat the deadline.

Wario is a former member of Kenyan President Uhuru Kenyatta’s cabinet and now the ambassador to Austria, meaning the corruption case reaches upper levels of the government. Ekai, his former sports ministry colleague, was recently appointed Kenyan ambassador to Russia.

Details of a chaotic Kenyan Olympic trip emerged in 2016, with allegations of joy riders being given thousands of dollars in allowances and hundreds of thousands of dollars and equipment meant for Kenyan athletes disappearing.

Despite that, Kenya finished second in the track medals table and had its most successful Olympics.