Pakistan's Imran Khan leads protest against US drone strikes
6 October 2012 Last updated at 10:35 BST
Cricketer-turned-politician Imran Khan has begun a motorcade "march" to Pakistan's restive tribal areas to protest against US drone strikes.
The two-day protest started in Islamabad and is due to end in South Waziristan, a major focus of strikes.
Mr Khan, like many Pakistanis, says the attacks kill large numbers of civilians and foster support for militants.
Orla Guerin reports.