KABUL - Up to four insurgents have been killed and eight others detained in different operations carried out by Afghan forces and the NATO-led coalition troops, in the latest raids against insurgency in the war-hit country, the coalition forces said on Tuesday.

"An Afghan and coalition force killed four insurgents and wounded three others during a security operation in Ghaziabad district, Kunar province, yesterday," the International Security Assistance Force (ISAF) said in a press release.

Earlier Tuesday, a Taliban facilitator along with two other insurgents were captured in Kandahar city, the capital of southern Kandahar province 450 km south of Kabul, the release said.

"The insurgent is believed responsible for directing multiple suicide attacks against Afghan and coalition forces throughout Kandahar province. He has also been involved in the death of Afghan civilians," the release added.

In addition, the joint forces arrested a Taliban facilitator and detained four other insurgents during an operation in Kandahar 's Panjwai district on Monday, it said.

The Taliban, which has been waging an insurgency of more than one decade, has yet to make comments.

The Afghan and ISAF troops have intensified operations against Taliban and other militant groups recently. But the insurgent groups responded by bombings.

On Monday, four Afghan border policemen and a civilian were injured when an Improvised Explosive Device (IED) went off in Khost city, capital of eastern Khost province 150 km southeast of Kabul.