PESHAWAR, Pakistan – A Taliban suicide car bomber attacked a rival militant commander's compound in northwestern Pakistan on Saturday, killing at least 10 people, as heavily armed assailants killed eight members of the coast guard in the southwest, officials said.

There has been significant infighting over turf and leadership positions within the Pakistani Taliban, an umbrella organization set up in 2007 to represent roughly 40 insurgent groups, many of whom are waging a bloody campaign against the government.

The compound that was attacked in Spin Dal village in the Orakzai tribal area was owned by militant commander Mullah Nabi, said senior tribal police official Amjad Khan. Nabi was once a close ally to a prominent Pakistani Taliban commander from Orakzai, Mullah Toofan, but the two are now fierce rivals.