MOSUL, Iraq (AFP) -- The situation in the northern Iraqi city of Mosul, rocked by blasts blamed on Al-Qaeda, is ""worse than imagined,"" the defense minister said as troops braced for an assault on the jihadists.

The Iraqi Red Crescent, meanwhile, said the toll from one of the blasts, in which a building was obliterated and about 100 houses destroyed, was higher than reported by the Iraqi authorities, with 60 people killed and 280 wounded.
""The situation in Mosul is worse than imagined by far,"" Defense Minister Abdel Qader Jassim Mohammed told a news conference late Sunday after touring the flashpoint city.
Speaking at the army's Nineveh province command centre in Mosul, Mohammed was highly critical of the Iraqi military's deployment in Mosul.
""The forces are scattered. We are working to unify the command. The military units are distributed in Mosul in a way that means they haven't studied the area,"" Mohammed told reporters.
""The 2nd Brigade of the Iraqi army works in the day and withdraws at night, leaving the insurgents free to move. There are many negative things and we must address them,"" the minister added.
""The security generally in Nineveh province is at a good level but in Mosul, the provincial capital, it is bad.""
Defense ministry spokesman Major General Mohammed al-Askari said that military reinforcements, comprising troops, tanks and vehicles, had reached Mosul for a huge offensive against Al-Qaeda.
He gave no details of the size of the deployment and would not comment on when the operation would begin.
Maliki promised a ""decisive battle"" against the jihadists in Nineveh province after the devastating blasts.
According to the U.S. military, a cache of munitions stored by insurgents blew up in a building in west Mosul's Zanjili suburb, leaving a massive crater and damaging about 100 surrounding houses.
A suicide bomber killed provincial police chief Brigadier General Salah al-Juburi and two other officers the next day when they went to inspect the carnage.
Iraqi officials put the toll from blast at 35 people killed and 217 wounded, but the Iraqi Red Crescent in a report on its website said the toll was much higher.
""Many families had buried their killed relatives immediately after the attack without getting them registered,"" it said.
""This had brought the estimate of the number of killed people to 60; most of them were children, women and elderly,"" the Red Crescent said.
""At least 280 people were wounded in the attack; some of them are in a very critical situation. It is expected that there are still dead bodies buried under the rubble.""
The Red Crescent deplored the blast, which it said ""targeted civilians, who repeatedly have been the victims of terrorism in Iraq.""
The U.S. military said Mosul was one of its intended targets in Operation Phantom Phoenix, a major countrywide assault on Al-Qaeda launched on January 8.
""Coalition forces recognise the strategic importance of Mosul to Al-Qaeda in Iraq and our operations will continue in the area,"" said Commander Scott Rye, a US military spokesman.
""This is not a new plan but part of a larger, comprehensive effort to root out Al-Qaeda and disrupt its networks throughout Iraq ... We will continue to coordinate closely with the government of Iraq and Iraqi security forces in our efforts to free all areas of Iraq from Al-Qaeda,"" Rye told AFP.