A NATO airstrike has killed three suspected insurgents in eastern Afghanistan.

Officials say that based on credible intelligence, Afghan and NATO troops raided a house and engaged the suspects in a gun battle in Khost province. Later, an airstrike was called in that killed three insurgents.

In the southern city of Kandahar, a suicide car bomber targeted a NATO convoy, wounding two soldiers and damaging one vehicle. A NATO spokesman did not identify the soldiers' nationalities.

Meanwhile, NATO's top commander in Afghanistan, British General David Richards, told the Financial Times that he doesn't have enough forces to defeat the Taleban within the next six months. But he said he can make what he called enough improvements to keep Afghans confident in the government and international community.

There has been a sharp rise in violence the last several months in Afghanistan, particularly in the southern and eastern provinces which border Pakistan. Militants have been using roadside and suicide bombs in their attacks against Western and Afghan security forces.

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