The cleanup operation against Taliban insurgents has been continuing in Bagh-e-Shirkat area of Kunduz province in north Afghanistan and four NATO soldiers have received injuries since Friday, spokesman of NATO-led International Security Assistance Force (ISAF) said Saturday. "Three vehicles of ISAF forces were partially damaged due to roadside bombings and four soldiers have been slightly injured over the past 24 hours in Bagh-e-Shirkat area," Lieutenant Colonel Weber told media. However, he did not comment on the casualties of Taliban insurgents saying Afghan and ISAF forces with the support of locals would continue the operation unless the area is cleansed from the insurgents. A relatively peaceful province in northern region, Kunduz has been the scene of increasing militancy since beginning this year. Taliban militants fighting Afghan and more than 130,000-strong NATO-led troops have vowed to speed up activities this year in the post-Taliban Afghanistan.