Baghdad, Iraq (CNN) -- At least 13 people were killed and 26 were wounded Wednesday in a bombing at an outdoor market in a predominantly Shiite town in Iraq's Diyala province.

Among the victims were women and children, said police in Baquba, about 25 kilometers (about 15 miles) from Abu Sayda, where the bombing occurred.

The bomb was in a parked car and exploded at the market, which includes a clinic and a Shiite mosque.

Overall violence in Iraq has dropped drastically over the past two years, compared with the height of the sectarian war in 2006 and 2007, but bombing attacks have continued.

CNN's Mohammed Tawfeeq contributed to this report.