ROUGH CUT (NO REPORTER NARRATION)<br/> <br />STORY: Nigeria's President Goodluck Jonathan on Monday visited the site of a plane crash in Lagos that killed at least 153 people and vowed to make air travel in the country safe.<br/> <br />Jonathan declared three days of national mourning and ordered an investigation into the cause of Sunday's accident, in which a McDonnell Douglas MD-83 flown by privately owned domestic carrier Dana Air crashed into the iron roof of an apartment block in the Lagos residential suburb of Agege.<br/> <br />Air craft crashes are not uncommon in Nigeria, where several domestic airlines are in operation under poor conditions such as financial difficulties and poor staffing.<br/> <br />The President promised to get to the bottom of this accident and make flying safer in Nigeria.<br/> <br />"I'm here with members of the National Assembly, and we will thoroughly investigate this, and the technical team will carry out their responsibility to tell us what went wrong," he said.<br/> <br />The cause of the crash is still unknown.
