Kabul, March 27 (DPA) Afghan police killed five Taliban suspects and wounded seven others after a group of militants attacked a convoy of supplies for US-led coalition forces in southern Ghazni province, the Interior Ministry said Tuesday.

The Taliban fighters attacked some 13 trucks hauling food supplies to a coalition base in Andar district of Ghazni province Monday and destroyed two trucks, Zemarai Bashary, interior ministry spokesman told a press conference.

Bashary said that the police accompanying the convoy returned the fire and during the firefight that lasted six hours, five militants were killed and another seven were wounded.

He said that there were no casualties among the police or the truck drivers.

Meanwhile, a suicide attacker detonated his explosive-filled vehicle near a NATO convoy in southern Kandahar city Monday, killing himself but causing no other casualties, Bashary said.

In a separate incident, Afghan and coalition forces arrested five suspected terrorists in separate raids in the east of the country on early Tuesday, the US military said in a statement.

Attacks by Taliban-led militants are on the rise as the weather gets warmer after a reduction of violence during the winter. The militancy so far has left more than 500 people, mostly militants, dead.