KABUL— Afghan officials say four policemen have been killed and four others wounded when their vehicle struck a roadside bomb in southern Afghanistan.

The Afghan Interior Ministry said in a statement Wednesday that the four were killed Tuesday in the Reg district of Kandahar province.

Kandahar province is next to Helmand province where 15,000 U.S., NATO and Afghan troops are in the fifth day of a massive military offensive to wrest control of the town of Marjah from Taliban control. (AP)