Runners who participated in a Tough Mudder event in Scotland have been diagnosed with E Coli.

Thousands of people took part in the extreme obstacle race at Drumlanrig Castle in Dumfries and Galloway last month.

Tough Mudder later emailed participants warning them about E Coli cases potentially linked to the event.

The bug, which causes severe and sometimes bloody diarrhoea, can be caused by accidentally swallowing water tainted by animal faeces.

NHS Dumfries and Galloway said events on agricultural land "inevitably" carry a risk of picking up an infection like E Coli.

A spokesman for Tough Mudder said: "The safety of participants, spectators, volunteers and staff is our number one priority.

"Tough Mudder is aware of the situation in Scotland and is working closely with local authorities.

"We are sorry to hear that Tough Mudder participants are unwell and wish them a full and speedy recovery."