Two soldiers die in heat while training in Brecon Beacons Sources said the men had been taken ill during arduous physical exercise in the Brecon Beacons, in Powys, Mid Wales. Saturday was the hottest day of the year, and the Met Office recorded the temperature at nearby Sennybridge as 83F (28C), with little breeze. The Army's Infantry Battle School in Brecon provides gruelling training courses for officers and soldiers in the rugged terrain of the Welsh mountains. Earlier this year an army captain was found dead on a snow-covered Corn Du mountain. It was thought that Rob Carnegie had been taking part in a gruelling 17-40 mile march in freezing conditions in the Brecon Beacons as part of a selection process for the SAS, when he collapsed and died. Matthew Dorrance, Mayor of Brecon, said: "In one way we've been blessed with the weather but for people working in this heat, they're tough conditions. It's incredibly sad for the friends and family of the people who have lost their lives. We're proud of our links with the military in the town and our thoughts are with the person who is injured. Dyfed-Powys Police confirmed they were helping with investigations and said the coroner had been made aware of the deaths.