Afghan officials say a U.S.-led coalition airstrike killed 15 militants who attacked a government building in eastern Afghanistan.

The officials say the NATO-led International Security Assistance Force  bombed the militants Tuesday as they were withdrawing from an attack at government headquarters in Paktika province.  Four insurgents were wounded in the attack.

The incident comes a day after a suicide car bomber targeting a NATO-led convoy in western Herat province killed five civilians.  Nineteen others were wounded in the attack.

Also on Monday, the U.S. military said U.S.-led forces killed 55 militants, including three Taliban leaders, during recent clashes in Paktika.

Some information for this report was provided by AFP, AP and Reuters.