A young boy carrying metal to sell walks past as a fire burns through part of Gikomba market, East Africa's largest second hand clothing market, in Nairobi on June 23, 2015. (File photo: VCG)

At least 15 people were killed and dozens injured in a fire that broke out at Kenya’s largest open air market in the country’s capital.

The fire started at 2:30 am Thursday local time. Investigators are still determining the case of the fire, local media reported.