REPORTERS Without Borders (RSF) has called on the French and Malian authorities to do all they can to secure the release of journalist Olivier Dubois, who was kidnapped by Islamists nearly two weeks ago. In a message released on Saturday the head of the RSF Africa desk Arnaud Froger said that time was critical for the freelance journalist, who writes for the news magazine Le Point and the Liberation newspaper. Mr Dubois was taken hostage in Mali’s Gao region on May 5 and released a video appeal shortly afterwards, confirming that he was being held by Jama’a Nusrat al-Islam wa al-Muslimin, an offshoot of al-Qaida.