Phoenix, July 12 (TIWN) Two firefighters were killed in the US state of Arizona while battling a wildfire which was ignited by lightning last week and has so far burned down 300 acres of land.

"The accident occurred around noon today and involved an air attack aircraft performing aerial reconnaissance and command and control over the fire. Two crew members were on board and we are sad to report there were no survivors," Xinhua news agency quoted interstate incident information system Inciweb as saying on Saturday.