A water station was also completely burned down after local residents set fire to oil patches in the river, according to eyewitnesses.
Some 17 other soldiers were injured in the attack, which the source blamed on the Islamic State of Iraq and Levant (ISIL) group.
In a statement, the ministry said that the helicopter carrying Gen. Hassan Karim Khudeir crashed due to a "technical mishap".
Syrian National Coalition leader Ahmed Jarba said the news didn't reflect the truth which contain damaging the churches in Keseb town of Syria.
The Iraqi parliament approved in 2013 a bill stipulating that the president, premier and parliament speaker cannot serve more than two terms in office.
Blast killed 11 people, including five policemen, and injured 11 others, including two policemen.
The operation is targeting Islamic State of Iraq and the Levant (ISIL) militants "has left dozens of the terrorist group's members killed," a commander said.
Seven Iraqi security troops were killed in two separate attacks in the northern province of Saladin, four Iraqi policemen were killed and eight others injured in the northern province of Kirkuk
The Iraqi military had earlier declared its intention to launch ground operations in the city, but the date for the planned operation has yet to be announced.
Friday's attack comes less than three weeks before the country's parliamentary elections, set for April 30.
Anti-government tribal fighters said ISIL's tactic was to flood the area around the city to force troops to retreat and lift the siege on Falluja.
Iraqi government troops have been pursuing ISIL rebels since December, when the group captured parts of Iraq's western Anbar province.
Eleven years after the fall of the Baath regime in Iraq, political turmoil and sectarian violence still afflicts the country.
Iraqi oil minister says they will restart pumping oil to Turkish pipeline within a week.
The President of the Kurdish Regional Government (KRG) in northern Iraq Masoud Barzani met with the Gorran Movement and Patriotic Union of Kurdistan leaders to form a coalition government in Irbil, on Monday.
Aero Vodochody has agreed to sell 12 L-159 subsonic fighter jets from the Czech army's stock to Iraq
Since last December, the army has waged a major offensive in the Sunni-majority Anbar province with the stated aim of flushing rebels out of the key cities of Ramadi and Fallujah.
Recent months have seen increased upheaval across Iraq, including in Kirkuk.
The statement said embassy personnel were prohibited from using Baghdad International Airport "at this time" and urged American citizens all across Iraq to remain on alert.
A militant drove the vehicle near an under-construction police station and another security building within close distance before blowing it up
The army moved in after militants retreated, but when they entered the house, a powerful blast tore through the building