Two have been killed and 11 injured, local police said.
The blast happened in the neighborhood of al-Shurta al-Rabaa.
At least 164 people have been killed in insurgent attacks in the last month, according to the country’s Interior Ministry.
The deadliest series of attacks last month took place on August 16, on the eve of the Eid al-Fitr celebrations marking the end of Ramadan, when over 80 people were killed and more than 270 wounded.
U.S-made Al-Qaeda’s offshoot in the country has claimed responsibility for some the coordinated attacks, which often involve suicide bombings, car bombs and shootings.