FACTBOX - Security developments in Iraq, July 7

(Reuters) - Following are security developments in Iraq at 1800 GMT on Saturday:

* Denotes new or updated item:

* TUZ KHURMATO - A huge truck bomb killed more than 100 people and wounded 250 at a crowded outdoor market in the northern town of Tuz Khurmato, 70 km (45 miles) south of the city of Kirkuk, police said.

* BAGHDAD - Police found 19 bodies in Baghdad on Saturday, victims of sectarian death squads. Most had been shot.

BAGHDAD - Two U.S. soldiers were killed by a roadside bomb while on foot patrol south of Baghdad on Friday, the military said, taking to eight the total number killed in Iraq in the last two days.

BAGHDAD - A suicide car bomber killed five Iraqi soldiers and one civilian at a checkpoint in east Baghdad, police said.

KIRKUK - Six policemen were wounded by roadside bombs near Kirkuk, 250 km (155 miles) north of Baghdad, police said.

BASRA - One British soldier was killed in the southern Iraqi city of Basra overnight during the largest operation by British forces in the country this year, the military said.

GARGHOUSH - A suicide car bomber killed 22 people and wounded 17 on Friday in an attack on Shi'ite Kurds in Garghoush, a village near the Iranian border, a local official said.

DIWANIYA - Six militia loyal to Shi'ite cleric Moqtada al-Sadr were killed in clashes with U.S. soldiers in the southern city of Diwaniya, a Sadr source in the city said.

SAMAWA - Seven people have been killed in clashes since Thursday in the southern city of Samawa between Iraqi security forces and Sadr's militia, police said. Fifty five people were wounded.

BAGHDAD - A family of seven was killed by a mortar in central Baghdad overnight Friday as they slept on their roof, police said. The dead included a couple and their four children.

KIRKUK - Four civilians were wounded by a roadside bomb in Kirkuk, police said.

RAMADI - A Saudi man was detained while trying to carry out a suicide bomb attack in a truck carrying canisters of chloride in the western Sunni city of Ramadi on Friday, police said.

BAGHDAD - Two civilians were wounded by a mortar attack in the central Baghdad district of Karradat Mariam, police said.

BAGHDAD - One person was killed by a roadside bomb in the southern Baghdad neighborhood of Zaafaraniya and two were wounded, police said.