Witnesses told Aljazeera’s correspondent that a US military camp was targeted in the first attack on Tuesday morning. In the second incident, an explosive device hit a US patrol in the al-Mafraq area, south of Samarra, damaging a tank. 

There is no further information available as yet.

Iraqi arrests

Meanwhile, US forces arrested on Tuesday morning five Iraqis suspected of being involved in anti-US attacks in the city of Baquba, northeast of Baghdad.

Aljazeera’s correspondent said the arrests came as US forces launched search operations in the city.

The operations come a day after a series of blasts in Baghdad which claimed the lives of 42 people and left 216 others wounded.