FACTBOX - Security developments in Afghanistan

(Reuters) - Following are security developments in Afghanistan reported at 1 p.m. British time on Tuesday.

* denotes new or undated items

* FARAH - An Italian soldier was killed and three were wounded when their military vehicle hit a roadside bomb in the western Bala Boluk district of Farah province, the Italian army and provincial governor Rohul Amin said.

* GHAZNI - Three Polish soldiers under NATO's command were wounded by a roadside bomb in the southwestern district of Khogyani in Ghazni province, provincial district police chief Mohammad Yaseen said. NATO said it was checking the report.

* SOUTHERN AFGHANISTAN - Two U.S. Marines were killed in southern Helmand province, where the Marines have launched a massive operation this month, the U.S. military said. The NATO-led International Security Assistance Force (ISAF) had earlier reported the deaths without giving the nationality of the servicemembers or the location of the incident.

* A civilian helicopter crashed in the Sangin district of Helmand, killing at least six foreigners including contractors delivering non-military goods to NATO troops, an alliance spokesman in Kabul said. The Taliban said it shot the helicopter down.

* Three local employees of a local security firm were killed and one wounded when a roadside bomb hit their vehicle in the southern Nahr Saraj district on Monday, the Interior Ministry said.

ZABUL - Eight inmates, seven of them Taliban prisoners, escaped from a provincial prison after attacking guards in Zabul province in the south on Monday night, senior police officer Ghulam Jailani said. A hunt for them was under way.

URUZGAN - A roadside bomb killed three civilians and wounded six including a woman when their van hit the device in the southern Chenar Tu district of Uruzgan province, the Interior Ministry said.