VIDEO: Sheffield Half Marathon 2018 gets underway
The start of the race was delayed by around 10 minutes due to a 'police incident' on the route.
Runners were set on their way by the Lord Mayor of Sheffield Cllr Anne Murphy and Sheffield's 'Mad Man with the Pram 'John Burkhill.
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Hide AdThe official start line was on Arundel Gate but runners lined up right back onto Surrey Street.
Mr Burkhill high-fived runners as they crossed the start line before taking to the route himself in what is his 998th fundraiser for MacMillan Cancer Support.
A group from Sheffield Boxing Centre are also running the race in memory of boxer Scott Westgarth who died following a fight in February.
The Star has contacted South Yorkshire Police for details of the incident which caused the delayed start and is awaiting a response.
The Star will be broadcasting live on Facebook from the finish line from around 11am.