FACTBOX - Security developments in Afghanistan, March 28

(Reuters) - Following are security developments in Afghanistan by 1800 GMT (6:00 p.m. British time) on Saturday:

* Denotes new or updated item

* PAKTIA - Three Afghan soldiers were killed and four others were injured when their vehicle was hit by a roadside bomb in Gardez district, about 130 km (80 miles) south of Kabul, the U.S. military said in a statement.

HELMAND - U.S.-led forces killed 12 militants in a raid on a building in Nahr Surk district, 530 km (330 miles) southwest of Kabul on Friday, the U.S. military said in a statement.

URUZGAN - Afghan army and U.S.-led coalition forces killed five insurgents and destroyed three improvised explosive devices after coming under small arms fire in the Shahidi Hassas district, 300 km (190 miles) southwest of Kabul on Friday, the U.S. military said.

(Compiled by Golnar Motevalli; editing by Andrew Roche)