April 3 (Reuters) - Following are security developments in Iraq as of 0900 GMT on Tuesday:
* denotes a new or updated item.
* BAQUBA - Police found the bodies of seven people shot in different districts of the religiously mixed city of Baquba, 65 km (40 miles) north of Baghdad, police said.
* TAL AFAR - Four al Qaeda militants were killed and 21 detained, including two leaders, in clashes with Iraqi security forces in the town of Tal Afar, about 420 km (260 miles) northwest of Baghdad, police Brigadier Ibrahim al-Jouburi said.
* ANBAR PROVINCE - A U.S. Marine died on Monday while conducting combat operations in Anbar, the U.S. military said.
* BAGHDAD - A roadside bomb killed two university students in Saidiya district of southern Baghdad, police said.
* BAGHDAD - A roadside bomb killed a person and wounded three others in Zaafaraniya in southern Baghdad, police said.
* TAJI - Police discovered the body of an 11-year-old boy with his throat slit in Sab al Bor, north of Baghdad, the U.S. military said. A local al Qaeda cell was suspected.
BAGHDAD - The bodies of 14 people were found shot in different districts of Baghdad on Monday, police said.
KIRKUK - A U.S. soldier was killed and two were wounded when a large truck bomb exploded at a police station in Kirkuk on Monday, the U.S. military said. The blast killed two Iraqi police officers and 10 civilians and wounded 17 policemen and 180 civilians. Kirkuk is 250 km (150 miles) north of Baghdad.
KIRKUK - Gunmen killed a policeman in Kirkuk, police said.
MOSUL - The bodies of three people were found shot on Monday in different districts of Mosul, 390 km (240 miles) north of Baghdad, police said.
NEAR FALLUJA - A U.S. soldier died on Monday when a roadside bomb exploded next to his vehicle in Fuhaylat south of Falluja, the U.S. military said.
ANBAR PROVINCE - A U.S. soldier died on Monday while conducting combat operations in Anbar Province, the U.S. military said.
ISHAQI - A roadside bomb exploded near the motorcade of Aamir Abdul-Hadi, the mayor of Balad, on Monday, wounding him along with five guards near the town of Ishaqi, 100 km (60 miles) north of Baghdad, police said.