At least six Pakistani soldiers were killed and 10 others wounded in the restive South Waziristan area when a group of heavily armed militants attacked an army checkpoint overnight, officials said on September 20. There was no immediate claim of responsibility for the assault. The South Waziristan district in Khyber Pakhtunkhwa Province near the Afghan border is one of Pakistan's most volatile regions. The area was once controlled by Islamist militants linked to Al-Qaeda and the Afghan Taliban before they were pushed across the border in an offensive in 2014.