Thousands of demonstrators are taking part in the "Caravan of Democracy March" led by influential Islamic cleric Tahir-ul Qadri to protest against government corruption and demand election reforms. The protesters began the march in Lahore and are expected to reach Islamabad's outskirts late on January 14. Security is tight in the capital, with shipping containers blocking the roads to some diplomatic enclaves and a heavy police and army presence around government buildings.