BAGHDAD, Iraq (CNN) -- A suicide car bomb detonated Saturday in front of the Iraqi national guard headquarters in the northern city of Kirkuk, killing 19 people and wounding 39 others, including guardsmen and recruits, according to Iraqi officials.

Elsewhere Saturday, a roadside bomb missed its apparent target of a U.S. convoy in Baghdad and hit a private car, which caught fire after the bomb detonated, an Iraqi Interior Ministry representative said.

In Baquba, north of Baghdad, a car bomb went off near the Technical Institute, injuring about 10 people.

In the northern city of Mosul, gunmen opened fire Saturday on a convoy carrying an oil manager, killing five of his bodyguards and wounding four others, according to a hospital official.

Saturday's developments follow a series of deadly attacks the previous day in Iraq.

A suicide car bomb detonated Friday near an Iraqi police checkpoint on a busy street in central Baghdad, killing at least eight Iraqis and wounding 41 others.

Earlier Friday, another car bomb detonated on Haifa Street in Baghdad.