BAGHDAD — The U.S. military announced the deaths of 14 American troops, including five killed today in a single roadside bombing that also killed four Iraqis in Baghdad.

Elsewhere in Iraq, a suicide truck bomber struck the Sulaiman Bek city hall in a predominantly Sunni area in northern Iraq, killing at least 13 people and wounding 70, an Iraqi commander said.

The U.S. deaths raised to at least 3,545 the number of U.S. troops who have died since the war began in 2003, according to an Associated Press count.

The deadliest attack was a roadside bomb that struck a convoy in northeastern Baghdad today, killing five U.S. soldiers, three Iraqi civilians and one Iraqi interpreter, the military said.

A rocket-propelled grenade struck a vehicle in northern Baghdad about 12:30 p.m. today, killing one soldier and wounding three others, another statement said.

Four other U.S. soldiers were killed and one was wounded Wednesday when their convoy was struck by a roadside bomb in a western neighborhood in the capital, the military said separately.

Southwest of Baghdad, two U.S. soldiers were killed and four were wounded Wednesday when explosions struck near their vehicle, according to a statement earlier in the day.

Two Marines also were killed Wednesday while conducting combat operations in Anbar province, west of Baghdad, the military said.