FACTBOX: Security developments in Iraq, Aug 25

(Reuters) - Following are security developments in Iraq at 1 p.m. EDT on Saturday:

* updates or new items:

* BAGHDAD - A parked car bomb killed seven people and wounded 30 others in the Kadhimiya district in northwestern Baghdad, police said.

* BAGHDAD - Authorities imposed a limited curfew in the capital banning bicycles, motorcycles and carts ahead of a Shi'ite pilgrimage, but did not ban cars or trucks.

* MOSUL - The body of a university lecturer was found in the southeast of the northern city of Mosul, five days after he was abducted, police said.

* MOSUL - Five people were wounded including three policemen by three separate roadside bombs in Mosul, police said.

* BAGHDAD - U.S. forces killed three gunmen and arrested 17 others in Muqdadiya 90 km (50 miles) north east of Baghdad, U.S. military said today.

* ARAB JABOUR - U.S. forces said they discovered an execution site containing human skulls and decomposing bodies in Arab Jabour, an agricultural area on the southern outskirts of Baghdad.

* BAGHDAD - U.S. forces said they and Iraqi troops had arrested nine militants in the Amel and Shula districts of the capital.