June 13 (Reuters) - Following are security developments in Afghanistan reported by 1130 GMT on Saturday.

* indicates new or updated item.

* FARAH - Afghan and foreign troops have killed 12 Taliban insurgents, including two of their commanders, in an operation in western Farah province, the Afghan intelligence office said on Saturday.

* HELMAND - A suicide bomber killed eight people and wounded 21 others in an attack on trucks parked at a fuel station in the Girishk district of southern Helmand province overnight, the district chief said. The trucks were carrying supplies for foreign troops in the province.

In a statement posted on a website, Taliban militants claimed responsibility for the attack.

KANDAHAR - A roadside bomb killed three policemen in southern Kandahar city overnight, a police official said.

HELMAND - A British soldier was killed by an explosion while on an operation near Sangin in the north of Helmand on Friday, Britain's Ministry of Defence said.

PAKTIA - One driver was killed and two guards were wounded when Taliban fighters attacked a convoy carrying supplies for international troops in eastern Paktia province, a spokesman for Paktia's governor said.

PAKTIA - Three people were killed when a private construction firm's vehicle was hit by a roadside bomb in a different district of Paktia, the spokesman said.

Reuters could not immediately reach the Taliban for comment about any of the reports.

(Compiled by Sayed Salahuddin)

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