Gunmen demanding the expulsion of Gaddafi-era officials from Libya's new government appear to have lifted their siege of two ministries in Tripoli.

Justice Minister Salah al-Marghani told the BBC the siege had ended at both his ministry and the foreign ministry.

The gunmen blocked the buildings two weeks ago, parking pick-up trucks with anti-aircraft guns outside.

Parliament passed a law last week barring Gaddafi-era officials from political office.