Today's heat is causing problems for many runners participating in the Amica Iron Horse Half Marathon in Simsbury.
About 10 ambulances have responded to Rotary Park in Simsbury off of Iron Horse Blvd. to care for runners affected by the heat.
According to police, some runners have collapsed while others were able to make it to the medic tent on their own for treatment.
Right now, the marathon is still taking place but marathon organizers and medical personnel are asking racers to walk or jog slowly to help avoid heat related injuries.
Prior to the start of the race, the marathon foundation posted tips for staying safe while running in the head.
To read the tips and to find more information on the half marathon, visit www.hartfordmarathon.com.