No casualties were immediately reported in Monday's three attacks, including one that targeted a U.S. military patrol and another that set fire to a six-story apartment building, police said.
Sunday's casualties included 25 Iraqis killed and more than 50 wounded by a car bomb that ripped through a tent packed with mourners at the funeral of a Kurdish official in the northern city of Tal Afar.
It was the single deadliest attack since insurgents started bearing down on Iraq's newly named government late last week.
U.S. and Iraqi forces imposed a curfew in Tal Afar, and by Monday morning they had encircled it and stopped all traffic from entering or leaving the city, said deputy provincial governor Khisru Goran.
In five blood-soaked days in Iraq, at least 116 people, including 11 Americans, have been killed in a slew of bombings and ambushes.
On Sunday, Iraqi militants released a video purporting to show Iraq's latest foreign hostage: an Australian who said he was married to an American and lived in California.
The British Foreign Office also announced three arrests in the abduction of a British aid worker believed slain last year, saying they were made Sunday morning during a coalition raid in an insurgent area 30 kilometers south of Baghdad.
In Monday's attacks in Baghdad, Major General Rashid Feleih, the commander of a special Interior Ministry security force, narrowly escaped unhurt when a roadside bomb hit his four-car convoy, damaging one vehicle, said police Major Mousa Abdul Karim.
In southern Baghdad, a car bomb exploded in an upscale shopping district of south-central Baghdad, setting fire to a six-story apartment building with a shop on the ground floor, said police lieutenant Ali Hussein. He said no casualties were immediately reported.
Elsewhere, a roadside bomb exploded near a U.S. military patrol in northern Baghdad, but no Americans were hurt, said U.S. Army Master Sergeant Greg Kaufman.
In Tal Afar, 150 kilometers east of the Syrian border, the car bomb exploded at a tent where mourners had gathered for the funeral of Sayed Talib Sayed Wahab, an official of the Kurdish Democratic Party, said Goran, who also serves as a KDP spokesman in the nearby city of Mosul.
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