VIDEO: Three firefighters with the Charlotte Fire Department have been hospitalized following a two-alarm house fire that was intentionally set Thursday morning in north Charlotte. The department responded to a structure fire around 2:45 a.m. on Grimes Street and had to call for more support due to the size of the fire. Firefighters said it took 60 minutes to get the fire under control. A mayday was also transmitted before one firefighter had to be rescued from the home. Three family members and a dog were also able to escape due to working smoke alarms. Overall, three firefighters were ultimately transported to an area hospital due to injuries sustained while battling the fire. Thursday afternoon, the Charlotte Fire Department said investigators “determined the fire was intentionally set.”