A roadside bomb that hit a civilian bus in Afghanistan's Ghazni province has killed seven and injured 17 others, police say.

The bus was travelling from Kabul to Kandahar.

About 1,000 Afghan civilians have been killed and more than 2,000 wounded in the first half of this year, a big number of them in insurgent attacks, according to the UN.

That marks a 24 percent increase in casualties compared to the same period last year.

Source: Al Jazeera