A Pakistani Taliban commander and key aide to tribal warlord Baitullah Mehsud was wounded Monday in a bomb attack that killed his driver near the Afghan border, officials said. A remote-controlled bomb exploded by the side of a road in the Tanga area of South Waziristan, a semi-autonomous tribal district, when Noor Syed Mehsud was passing in a vehicle en route to Jandola village. "According to reports received here Mehsud was slightly injured, while his driver died in the bomb blast," a security official in Wana, the main town of South Waziristan. Another security official confirmed the incident. Preliminary reports attributed the bombing to factional fighting between Baitullah Mehsud's men and loyalists of Abdullah Mehsud, he said. Abdullah Mehsud, 32, became leader of Pakistani Taliban insurgents based in South Waziristan in 2004, after Pakistani government forces launched military operations to clear out extremists from the troubled tribal region. He was accused of having links with Al-Qaeda and spent 25 months in the US-run prison at Guantanamo Bay in Cuba until his release in March 2004. Abdullah was wanted for the 2004 kidnapping of two Chinese engineers in Pakistan and he blew himself up with a hand grenade in July 2007 to avoid capture by security forces. Baitullah Mehsud took over command of the Taliban militants after Abdullah and formed the Tehreek-e-Taliban Pakistan (TTP) umbrella group. Pakistan's former government accused Baitullah of plotting the assassination of ex-prime minister Benazir Bhutto in December 2007. He denies any role.