A suicide bomber fully dressed in woman's clothing blew himself up in the main market in Chad's capital N'Djamena early on Saturday, killing 14 people and injuring 74, a police spokesman said.
The explosion happened at around 0830 local time (0730 GMT), during a busy period before the midday heat, locals said.
"Our current count is 15 dead," police spokesman Paul Manga, said, a total which included the suicide bomber. Security forces stopped people from entering the area and searched stalls for more explosives.
"The suicide bomber was a man disguised as a woman. He tried to enter the market when he was intercepted by police," Manga said. "That is when he detonated the bomb."
No group immediately claimed responsibility for the attack, however Chad blames Boko Haram, an armed insurgency based in Nigeria allied with ISIS, for a series of deadly attacks in the recent weeks.
"It is terrible to live through such things during the holy month of Ramadan and right next to the main mosque of N'Djamena," Abubakar, a resident who had come to the market after hearing the explosion, said.
Two suicide attacks took place previously in N'Djamena’s police sites in June, killing at least 34 people. Since then, Chadian authorities have heightened the frequency of arrests in efforts to dismantle the militants' networks.