(CNN) -- A spate of shootings and explosions in Iraq left more than 20 people dead and dozens wounded Wednesday, police officials in Baghdad and Ramadi told CNN.
In addition, bodies of 13 unidentified people -- each shot in the head -- were discovered in separate neighborhoods of the Iraqi capital, said the officials, who spoke on condition of anonymity because they were not authorized to speak to the media.
Iraqi security forces found eight of the bodies in the Arab Jabour district, a Sunni enclave in southern Baghdad. Five other bodies turned up in al-Shulaa, a Shiite area in the northwestern part of the capital.
Separately, police officials said, convulsions of violence rocked other parts of country:
A hidden bomb exploded inside a funeral tent filled with mourners paying their respects to a family in the western outskirts of Baghdad, killing at least nine people and wounding more than 20 others.
In al-Hurriya, a Shiite neighborhood, gunmen stormed a house and shot and killed three men and two women.
At an outdoor vegetable market in al-Dora al-Mahdiya in southern Baghdad, a roadside bomb blast killed two people and wounded three others.
At a police station in al-Samoud, east of Ramadi -- about 60 miles west of the Iraqi capital -- a car bomb exploded, killing two people and wounding four others.
And a police station at Joyba, in eastern Ramadi, also was rocked by a car bomb blast that killed two people and wounded four.