A man dressed in a woman's burqa blew himself up in the main market in Chad's capital N'Djamena on Saturday, killing 14 people and injuring 74, a police spokesman said.
No group immediately claimed responsibility but Chad blames Boko Haram, the militant group based in neighboring Nigeria, for a series of bombings and shootings in the Central African country in recent weeks, Reuters reported.
"Our current count is 15 dead," police spokesman Paul Manga said, a total which included the suicide bomber.
Witnesses said there were at least ten bodies lying near the entrance to the market where aid workers helped injured people into ambulances. Security forces stopped people entering the area and searched stalls for more explosives.
Several witnesses said that the bomber had tried to enter the market wearing a woman's burqa.