Thousands of supporters of Pakistan's former prime minister Imran Khan gather in Islamabad despite authorities' attempts to block the protesters' main routes into the capital. "The main reason for us to come here...is to bring our leader back," says PTI supporter Sharee Nawaz. The demonstration, led by Khan's Pakistan Tehreek-e-Insaf (PTI) party, is the largest in Islamabad since the retired international cricketer was jailed last year on several charges, some of them still before the courts. IMAGES AND SOUNDBITES