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A 17-year-old has been arrested after abusive messages were sent to diver Tom Daley on Twitter.

Tom Daley and his diving partner Pete Waterfield narrowly missed out on a medal in the men's synchronised diving on Monday.

Shortly afterwards Daley received a tweet which said "You let your Dad down. I hope you know that."

Daley's dad Rob died from cancer last year.

Tom responded, saying: "After giving it my all... you get idiots sending me this."

Dorset Police have confirmed they are investigating the incident.