A US helicopter crashed on 7 November near the town of Tikrit, north of Baghdad, killing all six servicemen onboard, said US military spokeswoman Josslyn Aberle. 'At approximately 0900 this morning [local time] a UH-60 Black Hawk helicopter went down,' Aberle said. 'At this stage we don't know if it was due to mechanical failure or another reason.' Reports from Tikrit suggest that the helicopter crashed into a riverbank along the Tigris, near a US army base in a palace that belonged to former president Saddam Hussein. The incident happened hours after a memorial service was held for the victims of a missile attack against a US military Chinook helicopter on 2 November, which killed 16 servicemen (MEED 3:11:03).