NATO-led Coalition Security Forces in Afghanistan regretted civilians casualties during a NATO airstrike in southern Helmand province.

International Security Assistance Force following a statement on Tuesday said, “During an operation in Helmand province Sunday against suspected insurgents laying IEDs, ISAF forces may have accidently killed three innocent Afghan civilians.”

The source further added, “The coalition extends its deep regret for this tragic incident. We also extend our sympathies to the families and loved ones of those who died, and we take full responsibility for what occurred.”

“Coalition officials will work closely with Afghan officials to determine what happened and why, and they will also meet with the family members of those that died to personally express ISAF’s regret and condolences”, ISAF said following the statement.

The operation occurred in Nawa district and did not involve close air support as reported in some media.

ISAF said,the incident remains under investigation.