Authorities in Pakistan say several insurgent bombs at a police training site in troubled Baluchistan province have killed at least six security personnel and injured 13 others.
The explosions went off Thursday morning on the firing range of the police training school on the outskirts of the provincial capital, Quetta.
Regional Police Chief Chaudhry Mohammad Yaqoob says that members of a special anti-terrorist police force were receiving training when the bombs went off. He says two suspects were arrested immediately.
"These were five blasts simultaneously," he explained. "They (militants) planted these explosive materials at the site where our police officers had gone for training. Two people have been arrested by the police. They were running away from the spot (and) they are suspected to be involved."
Despite an abundance of natural resources, Baluchistan is the poorest and most underdeveloped of Pakistan's four provinces. Tribal militants in the southwestern region are fighting for greater political and economic rights.
President Pervez Musharraf has said that "warlords" in the province oppose development and improved education there because that will undermine their authority.
Militants frequently attack security forces, gas pipelines, rail links and other government installations in the region. The violence has killed dozens of people in recent months.
An underground militant group, the Baluchistan Liberation Army, or BLA, has claimed responsibility for most of these attacks. The government has listed the BLA as a terrorist organization.