Afghanistan: Gun battle inside Kandahar police base

Gunmen have attacked a police training centre in the southern Afghan province of Kandahar and are battling security forces inside, officials say.

Reports from the base near Kandahar city say there was an explosion followed by gunfire.

Several attackers are involved in the raid, officials say. There were no immediate reports of casualties.

Tens of thousands of Afghan police and troops are being trained to assume full security control once Nato leaves.

Afghan forces are frequently targeted by the Taliban and their allies who want to oust the Western-backed government of Hamid Karzai in Kabul.