BAGHDAD (AFP) - A spate of attacks targeting security forces in the heart of Baghdad and the northern city of Mosul killed around 30 people on Monday, the bloodiest day in Iraq in three weeks. The bloodshed coincided with the release of official Iraqi ministry figures showing that violence across the nation climbed in November, with 340 Iraqis killed compared to 317 killed in October. In Baghdad, 15 people died and dozens were wounded, including young police recruits and civilians, when a suicide bomber and a car bomb exploded in quick succession near a police academy, the interior ministry said. The office of the Baghdad security plan, which coordinates Iraqi army and police operations in the capital, said that 11 people were killed. The attack took place on a stretch of road that had reopened only two months ago after being closed for two years following a previous suicide attack. Hours later, another 15 people were killed and 30 wounded when a suicide car bomb rushed into a joint US-Iraqi patrol in Mosul, police said. The US military gave a lower toll, saying that nine Iraqis were killed, including two policemen, while 40 people were hurt, including a US soldier. The military added that it was still investigating the incident. Iraq has seen dramatic improvements in security over the past year as US and Iraqi forces have allied with local militias to drive out insurgents, but some regions of the country, including the capital, still see near-daily attacks. And the US military still views Mosul as an urban stronghold of Al-Qaeda in Iraq, which is believed to be behind scores of suicide bombings. Elsewhere in northern Iraq, police found 12 bodies in a village south of the disputed oil-rich city of Kirkuk. They had been riddled with bullets and incinerated, Jamal Taher Bakr, the provincial police chief, told AFP. He said police had not yet identified the bodies. The province is ethnically mixed, with large Arab, Kurdish, and Turkmen communities, but the Kurds have demanded it be added to their autonomous region in the country's north. Monday was the deadliest day in Iraq since November 10, when 28 people were killed, including women and schoolgirls, in a triple bombing in a market in the Sunni Baghdad district of Adhamiyah. Another three people were killed on Monday in a roadside bombing in Baghdad targeting a senior defence ministry official, who was wounded. "General Mazher al-Mawlah, a defence ministry advisor, was hit by an explosive device when he left his house this morning," a defence ministry official told AFP, adding the Mawlah's driver and two passers-by were killed. Another ten people were wounded in the attack, which Major General Mohammed al-Askari, an army spokesman, said had "directly targeted" Mawlah. The wounded general participated in Prime Minister Nuri al-Maliki's national reconciliation project and worked on issues related to former army officers. Maliki has called on members of former dictator Saddam Hussein's outlawed Baath party to rejoin the political process and former members of his armed forces to abandon the insurgency and join Iraq's new security forces. Figures released by the ministries of interior, health and defence said 340 people were killed in November " up from 317 the previous month. The defense ministry said most of those killed were found in communal graves. Sixty alleged insurgents were killed, and another 875 were reported arrested, the ministry said. US military losses also rose last month, with 17 troops killed compared with 13 in October and 25 in September, according to the independent website www.icasualties.org. Since the March 2003 US-led invasion, 4,207 US troops have been killed in Iraq, according to an AFP toll based on the website icasualties.org. South Korea formally ended a four-year military mission at a ceremony in the northern Kurdish city of Arbil, with the first troops due to start leaving later this week. Its remaining 520 troops " which have suffered no combat casualties " and an air support unit based in neighbouring Kuwait, should be out before December 20, according to South Korea's military command.