KABUL: The Interior Ministry says a remote-controlled bomb hidden in a water truck has exploded in the eastern Afghan province of Khost, which borders Pakistan, killing three people including two children.

The ministry says another two children and one man have been wounded in the Tuesday morning attack.

Wazir Pacha, a spokesman for the provincial police chief of Khost, says authorities are investigating what the target might have been.

Taliban violence against U.S. and NATO soldiers and Afghan civilians continues to rise.

Military officials and others expect President Barack Obama to soon make a decision to deploy 32,000 to 35,000 U.S. forces to the 8-year-old conflict.