Violence in Iraq killed seven people on Friday, the latest in worsening unrest that has hit the country.

Violence in Iraq killed seven people on Friday, the latest in worsening unrest that has hit the country.

Friday's violence struck across the country -- in Baghdad and to its north and south -- with gun and bomb attacks.

In the deadliest incident, gunmen burst into a house north of Baghdad and killed three people.

Violence in Hilla, south of the capital, left two dead.

Five separate shootings and explosions in the capital Baghdad and Mosul killed two people and wounded 10 others.

Violence has surged in Iraq this year to levels not seen since 2008. Attacks have killed more than 3,580 people since the beginning of 2013, according to figures compiled by Agence France Presse.

As Prime Minister Nuri al-Maliki has vowed to press on with the security force operations, security forces have in recent weeks carried out some of their biggest operations since the 2011 withdrawal of US occupation troops.