More than 30 people have been killed, many of them policemen, and dozens wounded in a series of bomb attacks in the Iraqi capital, Baghdad.
Iraqi security forces are often the target of insurgent attacks
In the deadliest incident, a suicide bomber blew up his car outside the headquarters of the anti-terrorist unit in Karrada, killing 25 people.
Another car bomb near a Shia mosque in the south-western district of Shurta killed at least five people.
At least three policemen were reported killed in an earlier roadside bombing.
Ten policemen were among the dead in the blast in the central Karrada district, the Iraqi interior ministry said. At least 32 people were injured.
The suicide bomber blew up his car at the gate of the car park of the anti-terrorist unit.
The bomber had tried to drive into the car park, but was stopped by guards.
After the explosion, Iraqi security forces sealed off the area as ambulances rushed to the scene.
Insurgents fighting the Iraqi government and US-led forces have mounted almost daily attacks in the capital.
The level of violence increased further when one of the most important Shia Muslim shrines was bombed at Samarra last month, sparking sectarian reprisals.
The formation of the new Iraqi government has been delayed amid major disagreement over the Shia majority's choice of Ibrahim Jaafari as prime minister.
The failure to form a government is seen as one of the factors fuelling the violence.