Tuesday, 19 August 2014 - 18:00
Pakistan protesters to march on Islamabad secure red zone
Security has been tightened in the secure zone of Pakistan's capital, Islamabad, after protest leader Imran Khan called on marchers to enter it.
The government has forbidden protesters from breaching the highly secure so-called red zone, housing key state buildings and foreign embassies.
There are fears that any attempt by marchers to breach this order, could lead to confrontation.
Thousands of anti-government protesters are occupying two Islamabad highways.
Imran Khan, the cricketer-turned-politician, has been demonstrating along with thousands of his supporters in the capital since Friday to demand the government's resignation.