BAGHDAD — A series of bombs struck U.S. and Iraqi security forces in Baghdad and the northern city of Mosul today, killing at least 32 people and wounding dozens more, Iraqi officials said.

The bloody attacks were a grim reminder of the dangers facing Iraqis as they try to take over their own security. The Iraqi parliament last week approved a security pact with the United States that would let the Americans stay in Iraq for three more years to help maintain stability.

At least 16 people were killed and 46 wounded in a nearly simultaneous double bombing near a police academy in eastern Baghdad.

The suicide attacker apparently was a teenage boy.

In Mosul, a suicide car bomber detonated his explosives as a joint U.S.-Iraqi convoy drove by in a crowded commercial area, a police officer said. At least 15 people — most civilians — were killed and 30 wounded in that attack.

The U.S. military said two U.S. soldiers were wounded.

SEOUL, South Korea — Asian stock markets were mixed today as investors digested signs that the U.S. holiday shopping season got off to a tepid start over the key Thanksgiving weekend.While Japan's market fell, stocks in Hong Kong and mainland China rose on expectations of further measures by the Chinese government to boost the economy after last month's big interest rate cut and multibillion dollar stimulus package.Hong Kong's Hang Seng index was up 297 points, or 2.1 percent, to 14,185.8, continuing its rally from last week, when it rose nearly 10 percent. China's Shanghai Composite index was up 0.4 percent to 1,879.66.India's benchmark Sensex index also rose, climbing 2.4 percent to 9,305.94.Stocks in Australia, Singapore and South Korea also fell.Early reports from the U.S. showed modest gains in retail sales on Black Friday — the traditional start of the American holiday shopping season — but business appeared to fall off during the remainder of the weekend.

PESHAWAR, Pakistan — Militants in northwestern Pakistan attacked trucks ferrying supplies to NATO and U.S. forces in Afghanistan today, killing two people and destroying a dozen vehicles, witnesses and police said.Meanwhile, a suicide bomber killed eight people and wounded 40 others at a military checkpoint in the region's Swat Valley.The attack on the U.S.-led coalition trucks took place at a terminal in Peshawar, which sits along the supply route from Pakistan to Afghanistan. The city has seen an upsurge in violence in recent weeks, including the slaying of an American working on a U.S.-funded aid project.