Anti-government protesters march on Pakistan parliament

Tens of thousands of anti-government demonstrators in Pakistan have advanced towards parliament, breaching a designated secure zone in the capital, Islamabad.

Protesters removed shipping containers barricading the so-called red zone, which houses state buildings and foreign embassies.

The demonstrators are led by opposition figures, Imran Khan and Dr Tahirul Qadri.

Both men want Prime Minister Nawaz Sharif to resign over allegations of corruption and electoral fraud.

The BBC's Shahzeb Jillani reports