Police sealed off the area after the explosions

Two explosions have rocked a police station in Afghanistan's southern city of Kandahar, killing at least two policemen, officials say.

They say about 30 people - including civilians - were injured when two suicide bombers detonated their bombs in quick succession inside the station.

US-led and Afghan forces have been battling Taleban insurgents in the region in recent weeks.

In June, at least 350 rebels were freed during a jailbreak from Kandahar jail.

'General targeted'

"There were two suicide bombers who blew themselves up inside the police headquarters one after another," Ahmad Wali Karzai, head of Kandahar's provincial council, was quoted as saying by the AFP news agency.

The bombers targeted a senior border police commander, General Abdul Razaaq, who was injured in the attacks, reports say.

Earlier reports said at least six people had been killed in the blasts.

Police sealed off the area shortly after the explosions.

Kandahar is one of the key battlegrounds of the current rebel insurgency against the Afghan government and troops from Nato and a US-led coalition.

In a separate development, a suicide bomber attacked a Nato convoy in the western city of Herat but caused no casualties, officials say.

The US-led coalition said its forces had killed more than 10 insurgents in an operation in the eastern province of Khost on Saturday.

Afghanistan has seen rising levels of violence in recent months.

There are about 70,000 foreign troops in Afghanistan, most of them serving under Nato's command.



